Researchers collected images of 445 different species and the data could redefine how some animals are classified.

What do animals need to survive? MADDIE MOATE: There are all sorts of different animals living around us. These animals need the same four things to survive: air to breathe, water to drink ...

We call this kind of eye a compound eye, and because all the little lenses point in different directions, animals that have them are very good at detecting movement – especially of big things ...

Though there are different types of bear, all bear species have similarities. They all have stocky, fur-covered bodies; short legs; and a round head with a long snout. Whether the word "bear ...