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Biome of koalas: coastal regions of Australia in forests

Temperature: humid, can reach to the 70's, can get as low as freezing

Rainfall: in the south, intermediate levels of rain occur (15.5 and 27.5 in per year), east coast gets 40-60 in., tropical north gets 47 to 80 in

Food Sources: leaves of certain eucalyptus trees

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Common name: Koala

Scientific name: Phascolarctos cinereus

Life span in its habitat: 20 years

Size: 23.5 to 33.5 inches

Weight: 20 pounds

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North Australian Koala (left, organism A) and South Australian Koala (right, organism B)

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The differences between organism A and B include:

Size

Color

Shape

Bodily structure (ex: body fat)

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The variation between much body fat and little body fat can lead to natural selection. Koalas with smaller amounts of body fat (like the ones in Northern Australia) might struggle in the colder weather. This could cause certain species to die out. Southern koalas on the other hand have a lot more body fat then their brothers and sisters to the North. Due to the fact that they have a better chance of survival because of increased body fat, natural selection is less likely to take them out.

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One physiological adaptation of koalas is their slow metabolism of food

Eucalyptus leaves are hard to digest, so their metabolism is slower, helping extract all nutrients possible from the leaves

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A structural adaptation koalas have is finger like claws, kind of like humans

This helps them get around and do basic things like eat

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A behavioral adaptation koalas have is the ability to sleep for long periods of time

Their diet is very low energy, so sleeping after meals for long periods of time is common

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https://www.nationalgeographic.com/animals/mammals/facts/koala

https://www.environment.sa.gov.au/goodliving/posts/2018/10/koala-differences#:~:text=Their%20fur,them%20from%20the%20cooler%20weather.

https://www.britannica.com/animal/koala

https://www.climatestotravel.com/climate/australia#subtropical

https://www.britannica.com/animal/flightless-bird

https://www.britannica.com/animal/wombat

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Common name: Emu

Scientific names: Dromaius novaehollandiae, Dromiceius novaehollandiae

Habitat: open country in Australia

Physical description: over five feet tall, stout, long-legged, brownish body with a dark grey head and neck, three toed feet

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Both animals have claws

Even though koalas and emus aren't similar, evolution made the two species have their claws. Through a long line of evolution, the two are probably related and come from similar animals. The way these creatures developed over time showed that through evolution, the two are similar because of their claws.

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Within my understanding, natural selection is the ability of an animal to survive in its habitat while being able to reproduce

Environment, inherited variation, and population genetics play a factor in how koalas have evolved into its current state. The environment can play a role in terms of weather. Koalas with less body fat will not survive in the cold compared to koalas with more body fat. If a variation in the claw of a koala is different than that of a normal koala, it will have less of a chance for survival. Eating food and means of transportation will make it difficult for said Koala to survive.

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Common name: wombat

Scientific name: Vombatidae

Physical description: tailless, coarse dark hair, granular nose pad, 31 to 47 inches long

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One difference between wombats and koalas is the way their body structures are built

The difference in body structures helps either animal thrive in their community

Environmental conditions that may have caused natural selection includes the amount of food available and the habitat