Animal lovers would say that all animals ... significant because one individual is not significantly different from another This group includes animals like fish and rodents.

And humans - like you and me - are animals too! Animals can be sorted into different groups… MADDIE: Birds lay hard-shelled eggs and baby birds hatch out of those eggs. All birds have feathers ...

Eusocial animals express complex behaviors ... each may play a different role in the evolution of eusociality in different groups (Figure 4). Evolutionary biologists trace the origins of ...