sabre-toothed cats, cave bears, giant deer, etc..
I think this is the answer not sure.
One of the benefits of sexual reproduction is the diversity it produces within a population. That variety is a direct product of meiosis. Every sex cell made from meiosis has a unique combination of chromosomes. This means that no two sperm or egg cells are genetically identical. Every fertilization event produces new combinations of traits. This is why siblings share DNA with parents and each other, but are not identical to one another.
A male and female of the same type reproducing makes a species?
Invertebrates are what they can be classified as
