How did early man (before Homo sapiens) learn to have sex?

Don't want this to sound snarky, but how do dogs, dingos, birds, bats, bacteria, squid and seals know how to reproduce? Perhaps these animals don't purposefully go about willfully reproducing. read more

For the first humans to come about, pre-humans had to have had sex. In fact, all mammals tend to have sex, so the concept was certainly clear long before even primates branch of mammals developed. Humans come into the world with some innate sense of sex. read more

While anthropologists and evolutionary biologists can’t be precise, all available evidence suggests that humans have understood that there is some relationship between copulation and childbirth since Homo sapiens first exhibited greater cognitive development, sometime between the emergence of our species 200,000 years ago and the elaboration of human culture probably about 50,000 years ago. read more

Archaic humans like Homo erectus "spread like many other mammals in the Old World," Pääbo told me. "They never came to Madagascar, never to Australia. Neither did Neanderthals. It's only fully modern humans who start this thing of venturing out on the ocean where you don't see land. read more