By Josh Hall
In the 1960s, Madeline Charnier started incubating eggs of the African Rainbow Agama (Agama agama) at different temperatures in her lab at the University of Dakar, Senegal. She noticed the sex ratio...
By Bill Bradley
Snapping Turtles are the largest turtles in the United States and some of the heaviest freshwater turtles in the world. They are ancient-looking ambush predators with powerful jaws and claws. They are...