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Transcript of Koalas
For my project I chose an Australian Koala. This is a very interesting animal that Iv'e always loved and I enjoyed putting together this project together to find out more information about koalas that I've never known.
A koala is a mammal. This means they don't lay eggs, and are any members of a clade of endothermic amniotes distinguished from reptiles and birds by the possession of a neocortex (a region of the brain), hair, [a] three middle ear bones, and mammary glands. Mammals are “warm-blooded animals whose body temperature stays fairly constant, no matter what the temperature of the air around it.,”. They have hair on their bodies.Mammals also produce milk to feed their babies.
Domain : Eukarya
Kingdom : Animalia
Phylum : Chodate
Class : Mammal
Order : Diprotodontia
family : Phascolarctidae
Genus Species : Phascolarctos
Classification of Koalas
Koalas may rest between 18- 20 hours a day. A koala is a marsupial, or pouched mammal.
A baby koala is called a ‘joey’. Joeys live in their mother’s pouch for around six months and remain with them for another six months or so afterwards.
When not asleep a koala feeds on eucalyptus leaves, especially at night.
Koalas do not drink much water and they get most of their moisture from these leaves.
Koalas have sharp claws which help them climb trees.
Koalas have similar fingerprints to humans.
Koalas live in tall open eucalypt (gum tree) forests. The areas of bushland where they like to live are called their HABITATS. Koalas can only live in bushland where their favourite trees are growing, and they will only eat a few of the hundreds of species of eucalypts which grow in Australia. koalas in different areas of Australia like to eat the leaves from different types of gum trees. For instance, koalas in Victoria eat the leaves of different gum trees from those eaten by koalas in Queensland.
"ways of living" or "role of a species in a community"
Koalas have a specialized niche (an organism with a small niche) . This means they are vulnerable to extinction and any small change in its environment can affect it, since all it does is eat leaves of eucalyptus trees.
A koala and the bacteria in their stomach share a mutualism symbiotic relationship
This allows the koala bear to be able to get there food without dieing from the poison.
This is mutualism because both of the organisms are benefiting: the koala gets to eat the eucalyptus tree happily without dieing and the bacteria get the the food from the koala bear.
This will affect others members in the ecosystem because if the koala didn't have the bacteria in there stomach then they will die.
The good part about the koala bear dieing is that other insects have more food off the eucalyptus tree and now there are many free trees for birds to build nest.
A koala is in the middle of the food chain. Eucalyptus is at the bottom of the food chain and the koalas predators are at the top.
by Kassandra Murillo
Ms. Johnson's 6th period
May 12, 2016
effects of human interactions with koalas
humans have cut down trees to make: homes, roads, factories, and many more.
This consequence is negative because to the koala bear if you take away the tree ,your taking away there basic needs.
This will cause the koala bear to relocate, and during the land development.
Ever since the European settlement, about 80% of the eucalyptus trees have been cut down and the remaining 20% are not protected.
This interaction hinders the koala bear because they have lost almost everything they need to survive.
During relocation while the koala looks for another place to live some of them have died.
the koala has a large nose. Koalas are heavily dependent on their sense of smell. They need a keen sense of smell to determine if the eucalypts leaves that they intend to eat are poisonous or not.
The paws of the koala are heavily padded, allowing for a better grip as the koalas climb. Long, sharp claws also help the koalas when climing, the front paw has 5 digits, with 2 opposable thumbs. (Having 2 thumbs allows for a more secure grip on the branch.)The hind paw contains 4 digits, 1 thumb with 3 fingers. The hind thumb has no claw and is opposable to the other digits, resulting in better gripping.
The coat efficiently protects them from hot and cold conditions. The coat is also water resistant to fend off most moisture when it rains. All koalas have patches of white fur inside the ears, on their chins, chests and necks, and inside the front limbs. The fur on their rumps is used for padding because of the hard branches it constantly sits on. The combination of white and gray, sometimes brown, fur has properties of camouflage. Mature males have a brown scent gland in the center of their chest. The males rub their scent on the tree trunks to deter other koalas, especially other males, from entering their home trees.
Today the natural predators of the Koala do not make a significant impact on wild populations. They include goannas dingoes, powerful owls, wedge-tailed eagles, and pythons, all of which are most likely to prey upon juvenile Koalas. Feral animals are another threat Koalas have had to face since European settlement. They do not prey on anything, because they are herbivores
wedge tailed eagle
Predators and prey
teractons with humans