260-million-year-old fossil reveals the evolution of turtle shells

Turtle shells are truly remarkable structures. As embryos, turtles' bones begin to fuse, as ribs, shoulder bones, and vertebrae merge together to form the hard outer shell. That's an incredible evolutionary adaptation, and the Permian fossil Eunotosaurus helps explain how turtles got their shells. » 6/02/13 4:00pm 6/02/13 4:00pm

Beware Giant Radioactive Turtles of the Soviet Era

It's comforting to know that during the height of Reagan's Cold War in the 1980s, the Soviet Union was making movies that were just as cheesy as the ones you could see in the United States. When you see this clip of the scary, growling radioactive giant turtle from Мутанты (which means Mutant), you'll be forced to… » 4/15/08 8:20am 4/15/08 8:20am