Which species experience menstrual cycles rather than estrus cycles?
A) all mammals
B) all primates
C) humans and New World primates
D) humans and Old World primates

Question

Quizplus · Accepted Answer

Humans and Old World primates (such as chimpanzees, gorillas, and orangutans) experience menstrual cycles, while New World primates (such as howler monkeys and capuchin monkeys) experience estrus cycles. Therefore, option D is the correct choice as it includes the correct species that experience menstrual cycles.

Which Species Experience Menstrual Cycles Rather Than Estrus Cycles