Smell is one of the primary ways. Lions in a pride can tell through smell that a kitten isn't theirs. Animals mark turf using urine another means of identity for animals.
Pheremones.
no, because when they are older they still recognize there parents
no but you can mate with them
No, not all animals need to mate to have offspring.
Yes, all animals mate.
NO! owls mate owls & dogs mate dogs!
they eventually mate together
all animals except invertebrates
Yes
dont madder
While they are in heat.
kangaroo
no