David Attenborough tells the story of the animal that once bewildered scientists: the chameleon. Watch the full documentary David Attenborough's Natural Curiosities on BBC Select. Jeffrey Sherman ...
Most snakes reproduce sexually. A male and a female mate — the male inserts one of his two penises (called hemipenes) into the female's cloaca (an orifice for waste and reproduction), using ...
After a headless and handless body is found in a Florida canal, police launch a transatlantic hunt to track down the killer.