Showing posts with label Threatened. Show all posts
Showing posts with label Threatened. Show all posts

Thursday, 3 November 2011

Komodo Dragon

 

Natural Wild Life | Komodo Dragon | The komodo dragon, also known as the giant monitor lizard, is the largest species of lizard in the world.The komodo dragon inhabits the rainforests of Southeast Asia, and the komodo dragon is native to just a few islands in Indonesia that are part of the Komodo Island National Park. Fossil evidence however, suggests that the komodo dragon once had a much larger habitat but this has been severely decreased due to deforestation. Komodo dragons are completely dominant predators in their environment, and are named by the locals as the land crocodile due to their large size and habit of eating seemingly anything that the komodo dragons can find.


The komodo dragon has an exceptional sense of smell meaning that the komodo dragon is able to hunt out its prey up to 8 km away, when aided by the wind blowing in the right direction. Recent discoveries have revealed that the komodo dragon is indeed venomous, and does not kill its prey through lethal bacteria, as previously thought. However, once the damage the komodo dragon can do coupled with the fact that the saliva of the komodo dragon is known to carry more than 50 different strains of bacteria, means that any animal that manages to survive the attack of a komodo dragon, is extremely likely to die of infection.


The komodo dragon hunts anything that comes into contact with the komodo dragon, including its own eggs! Generally komodo dragons are not known to actively hunt humans, but the komodo dragon is known to be one of the man-eating animals in the world, as it is not uncommon for the komodo dragon to attack and eat humans that get in its way. To hunt their prey, komodo dragons rely heavily on their camouflage in the long grass and great patience as the komodo dragons sit and wait for prospective prey to pass. When a meal ambles past the komodo dragon, the komodo dragon uses its thick, powerful legs to spring out of its hiding place. The komodo dragon then uses its sharp claws and serrated teeth to capture its meal before then eating it.


Due to the fact that the komodo dragon is an apex predator in its limited environment, the komodo dragon will often live to more than 30 years of age. The main exception to this is the side effects that occur due to deforestation and areas where there is a lack of food for the komodo dragon to hunt. Today there are thought to be around 3,000 komodo dragon individuals left in the wild with less than a third of them being female komodo dragons that are of the age to breed. The komodo dragon has always been under threat from humans that destroy the habitat of the komodo dragon or quickly kill the komodo dragon when they come into contact with them.

Tuesday, 6 September 2011


Natural Wild Life | Molly | The molly is a small-sized tropical fish that is found naturally in the warm and peaceful rivers of Central America. Today, mollies are extremely popular fish to be kept in the community of an artificial aquarium, all around the world. Mollies are known for their calm and peaceful nature, which along with their brightly coloured bodies, makes them a particular popular choice for freshwater tanks of all shapes and sizes. The male mollies are more slender than the female mollies and have a slightly longer tail fin, making the two sexes easy to tell apart.


Mollies live amongst the plants in a group containing numerous molly individuals, known as a school. Although this works well for the mollies in the wild, the fast-paced breeding of these molly groups can quickly become a problem in artificial tanks. Mollies are omnivorous animals and therefore have diet that is comprised of both plant and animal matter. Mollies primarily eat small invertebrates including insects and bloodworm, along with algae and food particles in the water.


Due to their small size, mollies have numerous natural predators within their environment, with larger fish being the most common predators of the molly. Aquatic birds and even reptiles are also known to hunt them. Unlike many other species of tropical fish, female mollies give birth to live young rather than laying eggs which are very likely to be eaten. Mollies can give birth to up to 100 fry at once, only a couple of weeks after fertilisation occurred.

Monday, 5 September 2011

Shrimp


Natural Wild Life | Shrimp | Shrimp are marine crustaceans that are found on the bottom of the water in nearly every environment around the world. Shrimps are generally tiny in size, with some species of shrimp being so small that many animals cannot see them. There are more than 2,000 different species of shrimp worldwide, all of which are invertebrates which means that shrimp do not have a backbone. Instead, shrimp have a hard exoskeleton (the shell of the shrimp) which is often transparent and colourless making shrimp difficult to see in the water.


The shrimp lives on the river beds and ocean floors around the world, filtering sand and particles in the water. Shrimp are known to stay in schools that contain numerous shrimp individuals, and are able to adapt easily to changes in water conditions. Shrimps are omnivorous animals and therefore ingest and variety of both plant and animal species. Shrimp mainly feed on algae and other plant particles along with tiny fish and plankton in the water. One species of shrimp is known to stun it's prey before eating it by making a loud noise with one of it's claws, that makes a snapping sound through the water.


Due to their small size and abundance, shrimp are naturally prey to numerous predators around the world both in the water and out. Shrimp are eaten by fish, crustaceans such as crabs, sea urchins, starfish, sea -birds such as puffins, whales, dolphins, sharks and humans and many other animal species as well. The female shrimp can lay up to a million eggs at once that only take a couple of weeks to hatch. The tiny shrimp become part of the plankton in the water until they are big enough to big hunting in groups for larger food particles.


The shrimp is very closely related to the prawn and the thing that makes the shrimp and prawn stand out from other species of crustacean is the fact that they are able to swim through the water and although shrimps and prawns are very closely related, there are differences between them. The main difference between a shrimp and a prawn is they have different gill structures. There are different interpretations all around the world as to which species is a shrimp and which is a prawn that are often based on size and the water type where they are found.

Sunday, 4 September 2011

Weasel


Natural Wild Life | Weasel | The weasel is a small, thin mammal. Weasels are found all around the world apart from the Arctic and Australia including it's surrounding islands. The weasel feeds mainly on small mammals and the weasel has a bad reputation amongst farmers who do not approve of the weasel stealing their poultry and their eggs. The weasel can burrow quickly into the ground, meaning the weasel can easily escape danger including farmers that want to catch them. The weasel tends to grow to about 30cm long with a tail roughly the same length as the weasel's body. The weasel is generally a solitary animal but some species of weasel congregate together in groups for months on end. Weasels most typically come together to mate.


The weasel belongs to the same animal family as and is closely related to other animals such as ferrets,stoats and polecats. All these animals have a similarly long-shaped body and pointed snout and are all found in similar environments. Weasels are most commonly found in wooded areas but weasels are rarely found in really dense, thick forest. Weasels burrow and nest in hollow logs and under piles of rocks and weasels will often inhabit the nest of one of their prey rather than building a new one themselves.


Weasels most commonly breed during the mid-summer months and give birth to their young in late spring the following year. The female gives birth to an average of 6 baby weasels, which are pink, blind and tiny and have very little fur. After a couple of weeks the fur of the baby weasels is much thicker and the baby weasels are able to eat solid food after about a month. By the time the baby weasels are two months old, they have taught by their mother weasel how to hunt their own food and soon become independent.


Weasels are prey to numerous larger animals such as foxes, cats, snakes and birds of prey. It is because they are so vulnerable to being eaten, that many weasels will not even live to be year old. The average lifespan of a wild weasel is thought to be around 3 years but weasels have been known to live for longer in captivity. Generally, weasels prey on small animals such as mice, birds and baby rabbits. The larger male weasels however have been known to prey on larger animals that are bigger than they are.

Zebra Shark


Natural Wild Life | Zebra Shark | The zebra shark is a medium-sized species of shark, that is found in the warmer coastal waters and around tropical coral reefs. Zebra sharks are most commonly found in the Indian and South Pacific oceans. Zebra sharks can grow to nearly 3 meters in length and can get to be 30 years old in the wild. Zebra sharks that are kept in captivity generally do not exceed 15 years of age. Zebra sharks can be identified by the yellow spots that are present on the back of the zebra shark.


Zebra sharks have a long, flattened body which helps them to remain unnoticed on the seabed. The zebra shark also has a long tail which allows it to be more agile in the water. Zebra sharks move their tails from side to side when they swim, in an eel-like manner. Zebra sharks are omnivorous animals but tend to have a more meat-based diet. Zebra sharks feed on small fish, crabs, shrimp, snails and other small invertebrates along with squid and sea snakes which they forage for in the coral reefs.


Due to their relatively large size, zebra sharks have few natural predators as they are fairly dominant predators in their environment. Larger species of shark such as tiger sharks and bull sharks are the main predators of the zebra shark, along with humans who hunt them for their meat and fins. The female zebra shark lays an average of ten large eggs which hatch after an incubation period of around 5 months. The baby zebra sharks are nearly half a meter long when they first hatch.

Saturday, 3 September 2011

Grey Seal


Natural Wild Life | Grey Seal | The grey seal is one of the rarest species of seal in the world with around 40% of the grey seal population inhabiting the cooler waters around the United Kingdom. Grey seals are the biggest land breeding mammal in the United Kingdom, but are superbly adapted for life in the sea. Adult grey seals have 2 layers of thick fur and a thick blubber layer of fat to keep them warm at sea.


Grey seals get all the water they need from their food and a well hydrated grey seal will have bright eyes and tears. Grey seals feed mainly on squid and fish but the grey seal prefers to hunt sandeels and the seabed. The hands and feet of a grey seal are formed into webbed flippers with 5 strong claws on each. The grey seal has very powerful rear flippers that propel them through the water, using their tail to help steer. The grey seal also has very powerful shoulders that enable the grey seal to haul out onto steep and slippery rocks, even in a big swell.


Grey Seal pups have a white coat when born & for up to 3 weeks, then they moult into their adult coat. The grey seal mums feed their pups for 15 to 21 days with a rich milk that is 60% fat and the grey seal pups balloon out very quickly. After this weaning stage the grey seal mums leave their pups and the area. Grey seal pups leave too, as they must teach themselves to feed. Life is hard for Grey Seal pups. About 30 to 50 percent of them die before their first birthday. Grey seal mums recognise their own pups calls and know exactly how their own pup smells. The Cornwall Seal Group in south west England was set up to monitor the presence (or absence) of seals in a north coast colony.

Hammerhead Shark


Natural Wild Life | Hammerhead Shark | Hammerhead Sharks are appropriately named after their flat shaped heads. Hammerhead sharks are large carnivorous fish that prey on large fish and occasionally hammerhead sharks will hunt small water mammals. Hammerhead sharks are found in the warmer waters of oceans worldwide but hammerhead sharks are particularly found in coastal waters, and along continental shelves. The shallow waters that the hammerhead sharks inhabit allow the hammerhead shark to hunt prey more easily. There are 9 different species of hammerhead shark worldwide, ranging from 3ft to 20ft in length! Hammerhead sharks are not commonly known to attack humans but can be aggressive if a human came into contact with a hammerhead shark.


The flat shaped head of the hammerhead shark is thought to allow the hammerhead shark to detect prey more easily, as it increases the hammerhead sharks sensitivity to sonar activity. Hammerhead sharks are thought to use sonar waves detection in a similar way to their five main senses, so its like the hammerhead shark has a sixth sense. The shape of the head of the hammerhead shark is made up of two projections on either side of the face of the hammerhead shark, which gives the hammerhead shark the head shape that resembles a hammer almost rectangular in shape. The eyes and nostrils of the hammerhead shark are found at the ends of the hammer allowing the hammerhead shark to have better vision and smell of the surrounding water.


Like many other species of shark the hammerhead shark is a solitary hunter during the night, but during the daytime hammerhead sharks are known to form schools of up to 100 hammerhead shark individuals. Hammerhead sharks are commonly seen in larger groups during the summer months when the hammerhead sharks are migrating together in search of cooler waters. The great hammerhead shark is the largest species of hammerhead shark and one of the few species of hammerhead shark that is potentially dangerous to humans. This is due to the sheer size of the giant hammerhead shark and also because the giant hammerhead is known to have an aggressive temperament. Other species of hammerhead shark tend to pose little or no threat to humans as these species of hammerhead shark are generally much smaller than the giant hammerhead shark and are slightly calmer in their nature.

Barracuda


Natural Wild Life | Barracuda | The barracuda is a large species of fish found in the warmer, coastal regions of the world's oceans. There are more than 20 different species of barracuda that range in size from less than 50cm to nearly 2 meters in length. The barracuda is widely spread across the oceans but is more commonly found in the more tropical regions where there is an abundance of food. Although barracudas can be found in the deep ocean, they tend to prefer coastal habitats along continental shelves and close to coral reefs.


Despite the difference in size and colour between barracuda species, all species of barracuda have a similar elongated appearance, and pointed head with powerful jaws, containing rows of sharp fang-like teeth used for eating larger prey. The barracuda is known to be an aggressive and dominant predator, often relying on the surprise tactic in order to catch it's prey. Barracudas are also able to swim at over 40 km/h in short bursts which they do to overtake prey that may be trying to swim away. The barracuda is an opportunistic predator, feeding only on other animals in the surrounding water. The carnivorous barracuda primarily feeds on smaller species of fish, marine invertebrates, crustaceans and squid, which the barracuda usually ambushes with tremendous power.


Due to the fact that barracudas can grow into very large sized fish, the barracuda has few natural predators in the ocean besides sharks and killer whales. Humans are also one of the barracuda's main predators as they are hunted and eaten all around the world. Although little is really known about the reproduction of the barracuda, female barracuda are known to spawn during the spring. The female barracuda releases her eggs into the water which are then fertilised externally. As with many fish species, once spawned, the barracuda mother has no interest in caring for her young. Today, due to it's aggressive nature, the barracuda is one of the most dominant predators within it's coastal environments and has even been known to act aggressively towards humans diving or snorkelling in the water.

Seal


Natural Wild Life | Seal | The common seal tends to be found in colder waters in many places around the world. Many species of seal inhabit waters in the northern hemisphere and are often found in coastal waters where there is an abundance of food and fewer number of predators. There are thought to more than 30 different species of seal found in the world's cooler waters from the smallest species of seal, the Caspian seal to the Elephant seal which is the largest species of seal. Other seal species include the grey seal and the leopard seal which is known for it's highly predatory and aggressive behaviour Seals are closely related to sea lions and also walruses.


The seal is easy and common prey for many of the world's predators both on land and in water due tho the medium size and generally peaceful and playful nature. Predators of the seal include polar bears, sharks and even humans who hunt the seals mainly for their oil but also for food. Seals are highly carnivorous marine animals that primarily hunt fish, squid and crustaceans (like shrimp and crabs). The large leopard seal is known to have a more diverse diet that not only includes larger species of fish but also penguins and the occasional sea bird.


Surprisingly, seals only spend around half of their time in water as the other half is spent on land. After a gestation period of between 11 months and a year, baby seals (known as seal pups) are born on land. Seal pups develop very quickly and some baby seals are often able to swim within a few hours of birth. Seal pups are born during the spring and summer months when temperatures are warmer and there is plenty of food. Generally, seals live until they are about 20 years old but some species of seal live for a shorter period of time, where other seal species can live until they are nearly 40. Due to the fact that seals are a targeted food source for many species of animal, some seals in the wild will only live for a very short period of time.

Tang


Natural Wild Life | Tang | The tang is a small to medium sized fish that is found in the warmer coastal waters of the tropics. Tangs are well know for their bright colours and are closely related to surgeon fish and unicorn fish. There are 80 known species of tang, that inhabit the tropical waters of the southern hemisphere, including the largest species of the tang group, the white margin unicorn fish that has been known to grow over a meter long.


Tang are found around shallow coral reefs where there is an abundance of food and plenty of places to hide from approaching predators. The tang is named after the razor-sharp scalpel (also known as tang) at the base of their tails. When the tang feels threatened, it hides in a crevice in the coral or rocks and anchors itself in using this scalpel. The scalpel at the base of the tang's tail can also be used to defend itself if it is caught. Although the tang is an omnivorous animal, it has a predominantly vegetarian diet. Tang mainly feed on algae and other plants around the coral reefs as well as picking the larger food particles out of the plankton in the water. Later species of tang also feed on small invertebrates and fish. Due to the tang's love of algae, tang can often be seen with sea turtles as they swim along with them cleaning the algae off their shells.


Due to it's small size, the tang has many predators in it's shallow ocean environment including larger fish, eels, sharks, crustaceans and large invertebrates such as jellyfish. Tang are also preyed upon by human who mainly catch them to keep in artificial aquariums. Tangs are known to breed all year round in the tropical regions, beginning with a male tang securing himself a temporary breeding territory that includes a pair or group of female tang. The female tang release an average of 40,000 eggs into the water which are then fertilised by the male tang. The baby tang are known as fry and hatch in less than a week. Tangs however are reported to breed as well when in captivity.


The tang is one of the most popular species of marine fish to be kept in tanks and aquariums around the world. People are charmed by the peaceful and gentle nature of the tang, along with it's bright colours and the fact that tangs can live for a long time (average is between 12 and 15 years), especially compared to other species of marine fish of a similar size. Tang are not recommended to be kept in small aquariums as tang have the potential to get pretty big. The most common type of tang kept in salt-water aquariums are the yellow tang and the bright blue regal tang but despite the fact that the tang is popular fish to keep they need to be well looked after and have specific water conditions maintained.

Saturday, 6 August 2011

Mayfly


Natural Wild Life | Mayfly | Mayflies are insects which belong to the Order Ephemeroptera. The mayfly is medium-sized insect that is found in a variety of habitats all around the world. The mayfly is one of the most short-lived animals in the world and is most closely related to dragonflies and damselflies. There are 2,500 known species of mayfly generally found close to water, all around the world with over 600 species of mayfly natively found in North America. Mayflies are extremely sensitive to pollution and can therefore only be found close to water that is of a high quality.


Mayflies have long narrow bodies and large wings, with a second set of smaller hind wings behind them (in a similar way to butterflies and moths). This allows the mayfly to have greater agility and power when it is in the air. Adult mayflies tend to be herbivorous only really surviving on algae although there are a number of known mayfly species that prey on other insects. The adult mayfly has a very short lifespan which can be anywhere from to half an hour to a few weeks long.


The adult mayflies have a number of predators out of the water including amphibians such as frogs, toads and newts, small reptiles, birds and even rodents and mammals. However, the aquatic longer-lived mayfly nymphs too have predators including fish and amphibians. The female mayfly can lays thousands of eggs at time which she does so into the water. The mayfly nymph are aquatic and hatch in the water where they can take anywhere from a few months to more than a year to transform into an adult mayfly and head into the air.

Binturong


Natural Wild Life | Binturong | The Binturong (Arctictis binturong), also known as the Asian Bearcat, the Palawan Bearcat, or simply the Bearcat, is a species of the family Viverridae. The binturong is native to the jungles of south-east Asia and is commonly found in countries such as Myanmar, Vietnam, Thailand and Malaysia. The binturong is a large carnivorous mammal that has a long bushy tail and hunts small reptiles, birds and mammals. The main part of the modern binturong's diet surprisingly comprises of fruit! The binturong is generally about the size of a large dog and have been known to live to 26 years old in captivity. The binturong population numbers have been severely reduced due to deforestation today.


The binturong is a nocturnal animal and the binturong sleeps on tree branches during the day, then the binturong wakes up to search for food at night. When the binturong has been cornered, the binturong has been known to be vicious, although the binturong does not commonly pose a threat to humans. The binturong is a very vocal animal and the binturong's sounds can travel a long way through the thick jungles. The binturong is known to make chuckling sounds when the binturong seems to be happy and the binturong appears to utter a high-pitched wail if the binturong seems to be annoyed.


 The binturong climbs trees and leaps from branch to branch, with the binturong using its tail and claws to cling on. The binturong does this while searching for food. The binturong is also able to rotate its hind legs backwards so that the binturong's claws still have a grip when climbing down a tree head first. The binturong also uses its tail to communicate as well as climbing, and the binturong does this through the scent gland located under the binturong's tail. The binturong brushes its tail against trees and the binturong howls to announce its presence to other binturongs.