Answer:
All animals and living things need to reproduce to keep their species alive
Step-by-step explanation:
Like the other person commented, some people want to have kids, and others do it for fun LOL.
Btw,
With other species, the animals that DO reproduce are the ones that are most likely to survive, like a green bird in a heavily forested environment would survive, while a pink bird wont. This helps protect their species and ensure that the "most likely to survive", reproduces, so their offspring also are most likely to survive!
:)