How long is a whales dick

Most birds do not have a penis. Meet the Amazonian candiru. When that blood is sent directly to the testes, the sperm are cooled below body temperature and remain viable. Because, in this case, erection depends more on a willingly moved muscle and not in tissue turgescence. See our Privacy Policy for further details. This does not mean that all sharks will give birth to living offspring, some lay eggs like all rays, skates, Port Jackson shark, catsharks, houndsharks. Reproduction among these marine mammals can vary from one species to the next.