Are there any grammar mistakes? If so can you help me fix it? Thank you!?

It's very good, but some of the sentences are awkward or repetitive. Sometimes you mix up present tense with past tense. it should remain consistent. Here, I have fixed it all for you, trying not to change it too much.

Koalas have large rounded ears, leathery black noses and stout bodies covered with grayish-brown fur, making them resemble a small bear. Sometimes called the koala bear, koalas are kind and gentle. However, the koala is not a bear.

This creature belongs to a group of mammals called marsupials. Animals that belong in this group include kangaroos and opossums. Koalas spend most of their lives in the eucalyptus trees and feeding on its leaves. Koalas must be careful when eating young leaves from the eucalyptus trees though, as it contains an acid that can be poisonous.

Koalas raise their young in a pouch on the underside of the mother’s belly like kangaroos and other marsupials. A male koala can weigh up to 30 pounds when it is fully grown and the female koala can weigh up to 20.

Koalas live in the temperate forest. Most of the trees in the temperate forest are oak, maple, birch, beech, hickory and sweet gum, among many other types that also grow in the temperate forest. There are small plants that grow in this forest, too. It includes ferns, mosses, shrubs, lichens, Blue Bead Lily, Indian Cucumber and wild sarsaparilla. Other animals that live in the temperate forest are foxes, deer and bears.

There are four seasons in the temperate forest. When springtime comes, it brings new life to the trees and plants, warm temperatures and rain which help everything grow. However, summer is hot and everything is green since all the trees now have leaves. When fall comes, the temperature is cool and trees will change colors like red, yellow and orange when fall comes. Winter is very cold and all the trees loose their leaves. The average temperature in the temperate forest is 50 degrees F°.

Koalas have large rounded ears, leathery black NOSES and stout BODIES covered with grey-brown fur. That is why they look like SMALL BEARS. A koala is kind and gentle and is sometimes called a koala bear. But, THE koala is not a bear. This creature belongs to a group of mammals called marsupials. Animals that belong in that group include kangaroos and opossums. Koalas spend most of their lives in the eucalyptus trees and feeding ON its leaves. But koalas must be careful when eating young leaves from the eucalyptus trees. THEY contain an acid that can be poisonous. Koalas raise their young in a pouch on the underside of the mother's belly like KANGAROOS and other marsupials. A male koala can weigh up to 30 pounds when it is fully grown and the female koala can weigh up to 20. Koalas LIVE in the temperate forest. Most of the treed in the temperate forest are oak, maple, birch, beech, hickory AND SWEET GUM (no comma here). there are many other types of trees that grow in the temperate forest. there are small plants that GROW in the forest, too. THEY INCLUDE ferns, mosses, shrubs, lichens, Blue Bead Lily, Indian Cucumber AND WILD SARSAPIRILLA (no comma). other animals that LIVE in the temperate forest are foxes, deer AND BEARS (no comma). There are four seasons in thetemperate forest. When spring time comes, it brings new life to the trees and plants, warm temperatures, and rain which HELPS everything grow. But summer is hot, and everything is green since all the trees now have leaves. When fall comes, the temperature is cool and trees will change colours like red, yellow and orange. (don't repeat when fall comes). Winter is very cold and all the trees LOSE their leaves. The average temperature in the temperate forest is 50 degrees F.

Note: I have indicated my changes in UPPER CASE.

remove the sentences that start with but and use "however" or commas to put the sentence together.

A koala is kind and gentle and is sometimes called koala bear, although koala is not a bear, it just looks like one.

Hi - very good on punctuation - never have a comma before AND - that's the only thing I could find.

Don't you have to capitalize Eucalyptus trees?

Yes, there are. I can help, but won't. sorry!

i don't feel like reading now

but thats okay!!!!!

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