It's a long-held idea that turtles can tuck their heads into their shells when threatened. But is it true? And is this protective trick why turtles the world over have shells today? The answer is that ...

Shell integration typically involves 50 to 60 individual bones fusing into a permanent structural cage. The carapace creates a mechanical constraint that prevents the chest from expanding during ...

Kids talk about their favourite animals, and there's the story 'How the Turtle Got its Shell' - plus music from Kiri & Lou, Music with Michal, and Wonky Donkey Man Craig Smith!