Here is the corrected version of your paragraph with simple grammar fixes:
Corrected Paragraph:
You can’t find frogs at the poles. To live at the poles, animals need to be protected from the cold. Polar bears have warm fur, and walruses and penguins are covered in two layers of down and feathers. Penguins, by the way, are birds that can’t fly but can swim well.
Explanation of the corrections:
- Changed "on the poles" to "at the poles" because "at" is used for specific locations like the poles.
- Changed "polar bear have" to "polar bears have" to match the plural subject.
- Added a comma and "and" before "walruses" for better sentence flow.
If you want, I can help explain more about why frogs can’t live in cold places or why penguins swim instead of fly!