Why do humans and animals have to breathe? – Tennessee, age 7, Hartford, Kentucky You need to breathe for the same reason you ...

We’re here at the lake to find out how different animals breathe. All animals need to take in oxygen and get rid of carbon dioxide, but they can do this in very different ways. Take fish ...

They're also some of the only animals that can breathe with their butts. You see, inside a turtle shell is a very particular respiratory system. Wojakowski: You will see the lungs towards the top ...

Scientists were slow to recognize that Covid spreads through the air. Some are now trying to get ahead of the bird flu.

All can breathe and absorb water through their very ... Some transport water, oxygen, and carbon dioxide either into or out of the animal. Others fight bacteria or fungal infections.