Why would a animal kill another 1st on to answer get brainiest

To eat it :

They could kill another animal for food or they could be doing it to earn their territory and to keep their young/babies safe.

just be there for her.

explanation:

not necessarily literally but figuratively. also don't say things like "i understand how you feel", because even though you are trying to , you clearly don't understand how she feels (i'm gonna go out on a limb here and assume you've never had a heart attack). also just let her rest. that is one of the best things for you to do.