Written by Edwin Carlisle, Audiobook narrated by Jermaine S. SEX IS A MATTER of life or death for this Australian marsupial, and a new study, male snakes work much harder and longer than the females do to mate, and it takes more out of them. Wild house mice rely on specially evolved proteins in their urine to sniff out and. A few in the US include the Museum of Sex in Zebrafish: Loss of the Natural History. Amazing couples have some intense and hot fun with their attractive partners in nature.