preview

Research Paper On Australian Animals

Decent Essays

Australia has a vast and fascinating amount of animals, and is home to some of the most unusual creatures on Earth. It is one of the few continents to have all three groups of mammels —monotremes, marsupials, and placentals. Australia is also home to more than 800 species of birds, over 4,000 fish species, 50 different marine mammals, and two types of crocodiles. The continent has an expansive variety of ecosystems and habitats, such as sub-tropical rain forests in the Northeast, an immense span of desert and semi-arid land in Central Australia, and barren grasslands and towering mountain ranges scattered around the entire region. Approximately 90% of animals native to Australia and found nowhere else, such as the koala, kangaroo, dingo, platypus, …show more content…

A majority of the animals indigenous to Australia are marsupials, or animals whose young develop in a pouch instead of a placenta. These babies are not able to fend for themselves, so they live in a pouch in their mothers' bellies, where they feed on milk and grow until they can survive outside. Of the 238 species of mammals living in Australia, 144 are marsupials, and 90 percent of these are found in Australia. The continent is also home to the only egg-laying mammals in the world, the echidna and the odd duckbill platypus. Echidnas and small, solitary animals coated in bristles and spicules. Superfically, they resemble anteaters, or hedgehogs. They are usually brown or black in coloring; however albino echidnas have been reported. They have elongated and slender snouts that function as both a nose and …show more content…

The platypus has a flattened torpedo-like body, dense waterproof fur, and strong front legs used for both swimming and digging. Its head is narrow, each ear hidden in a groove next to its small eyes. While submerged to feed, the senses of sight, smell, and hearing are essentially shut down, so the creature uses its electroreceptors to navigate perfectly underwater. One of the platypus’ main predators is the crocodile, another aquatic animal commonly found in Australia. Crocodiles have a very low metabolism and move very little, in addition to being a "cold blooded" animal, which means they do not maintain a regular body temperature. That adds up to low energy consumption, so they, therefore, seldom need to eat. Their diet includes mollusks, crustaceans, insects, crabs, crayfish, shrimp, amphibians, reptiles, and fish. Among mammals, crocodile prey on wild boar, kangaroos, water buffaloes, goannas — monitor lizards, birds, horses, zebras, yaks, barasingha — swamp deer, deer, bats, gaurs—a type of bison, sharks, domestic livestock, monkeys, and dingoes. Large crocodiles can ambush and kill cattle and horses as they come to drink at

Get Access