The mother animal who could not carry her newborn baby, watched her group leave the area, looked back at her baby, toward the group, back at the baby: her ambivalence about which choice to make...
Use it's (with the apostrophe) only when you mean "it is" or "it has." For example: It's time to go. (It is time to go.)It's been a long time. (It has been a long time.) Use its (without the...