Problem:
Question 1: It's common that human females have a more flexible body than males, (but I don't know why, so it'd be helpful if someone answers why so as well!) but does this apply to all mammals?
Question 2: I am trying to find animations which can anonymous or generalised for Embryology. However, I have not find any single good source.
Is there any bank of animations for generalised embryos?
Please provide description of your answers.