Answer the following question given this paragraph: 

Mating refers to the union of a male and female of the same species for reproduction. The relationship between mates varies by species. Adults may have many mates, or they may mate with just one individual. Mates may stay together only while mating. Or they may stay together for an entire breeding season or even for life.


Q: What refers to the union of a male and female of the same species for reproduction?


A:
mating