Ah, but you said every other species and then referenced a few mammals. And carnivores at that.

But mammals only make up 6 percent of the world's animals, or around 6400 extant species and carnivores only make up 4% of that 6400, or about 260 species.

So no. The father's aren't providing or protecting those offspring. For the most part they're hatching out of egg s and then they're on their own.

And for the other 96% of mammals, HAHAHAHA, when was the last time you saw a deer buck bringing blueberries, clover, and honeysuckle to a doe?

Uh. Duh. Never. Doesn't happen.

80 to 95% of carbivote species live solitary lives. That means they don't interact socially except during mating. There are no cooperative behaviors. That means the males aren't protexring or providing for females or young.

Even amongst social species, sex segregation outside mating is not uncommon. Most ocean mammals, for example live and hunt separately. Sexual segregation is actually the norm, not the exception.

Might want to go check and actually read your sources more carefully.