Left: Red-eared slider (Trachemys scripta elegans)
Let's start with this picture of a red-eared slider, not a red-footed tortoise, and in fact not a tortoise at all. It's a turtle.
Left: Red-footed Tortoise (Chelonoidis carbonaria)
What's the difference? Simple: Tortoises are terrestrial, meaning that they spend all their time on land, whether in the desert, the jungle or rocky hillsides. Turtles are aquatic or semi-aquatic, meaning that they have to spend all or a large part of their time in the water, whether it's a river, lake, pond or ocean.
Left: Diamondback Terrapin (Malaclemys terrapin)
Terrapins are also turtles. The name is derived from the Latin term for turtle.
Cooters encompass... [ Read more...