How bacteria are beneficial to animals?
Let's just put it this way, animals can't live without bacteria.
I know that sounds crazy, but there are different kinds of
bacteria. The kind that you and I think about a lot are hetatroph
bacteria. They cause us to get sick. Autotroph bacteria on the
other hand live in you and me inside our intestines. They also live
in animals. If we and they didn't have them, we'd die. Hope this
helps!