Well not like ALL animals, since not all animals act the same way. I don't expect we are like fish, that (some?many?most?) are abandoned as eggs to make it on our own, or like sharks that have two wombs and the mama-shark keeps generating eggs to feed the two stronger babies (one in each womb).

I assume that those who "group" us based on similarities on the behavior and manner we raise our offspring must have use some logic to the process.