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They have thick skulls. Turtles are anapsids, which means their skulls are solid save for openings for their eyes and nostrils. Next Thing Previous Thing

Scientists divide turtles into how they retract their heads into their shells. Turtles who bend their necks vertically are called Pleurodira, while those that bend their neck back vertically are called Cryptodira. When the neck is…

Ancient turtles were huge. The largest of the freshwater turtles was actually called Stupendemys. This beast lived in South America during the Pliocene epoch and was nearly 11 feet long. Testudo atlas, a land tortoise, was the biggest land…

Turtles have no teeth, but they used to. Turtles lost their teeth about 200 million years ago. Now they have beaks that are lined with quite sharp ridges. Even a hatchling can deliver a surprisingly potent nip. Next Thing…

The shell is actually part of the animal’s spine and ribs. The upper part of the shell is called the carapace and the lower part is called the plastron. The outer layer is covered with scales called scutes. Scutes are part of the turtle’s…

Shells are useful, but they make it hard to breathe. Since the animal’s body is enclosed in the shell, they don’t breathe like other animals do by expanding and contracting their ribs. The ribs, as we now know, are part of the rigid shell.…

Turtles have surprisingly good vision. Their night vision is especially acute, because they have lots of rods in their eyes. These are cells that help an animal see in low light. Turtles also have an abundance of cone cells, which let them…

Turtles don’t grow old. Unlike other animals such as humans, the internal organs of turtles don’t seem to wear out over time. Scientists have noticed that the viscera of a 100 year old tortoise are as fresh as those of a young one.…

You can tell the males by their unusually long claws. Biologists believe that the very long claws of male turtles help to get the females in the mood. Back to Start Previous Thing

Megan was able to find 6 new family members for her new Turtle Tank. If you haven't read about it, please click here for details. Megan picked out turtles that we were told would stay small. We have a couple of 3 stripe mud turtles, a…