Dont female animals get periods?!
Question:
Dont female animals get periods?
lol its weird how they reproduce
Answers:
Some do. Most don't.
Most animals don't need to have menstrual cycles because they only mate a few times a year. Therefore, they will make the most of their few opportunities to reproduce.
Dogs can menstruate if they miss their fertile period (estrus, aka "heat").
For many species that experience estrus, observable physiological changes occur to indicate fertility. In some apes, the butt cheeks and genital labia turn red.
In humans, however, we are one of the few species that mates not only as a reproductive function, but as a social function (pair bonding and the like). Because humans can mate whenever they feel like it, we don't need to rely on big showy signs of fertility. Human women experience "cryptic ovulation." That means you can't visually tell that we're fertile. So we go through our cycles, and if a man happens to catch us at the right time of the month (sans condoms and pills), then we get pregnant!