Turtle shells evolved over the course of 300 million years, but self-defense wasn't the initial driver, researchers think.

Fossil tortoise at the Central Natural Science Collections at MLU. Credit: Markus Scholz / MLU The evolution of giant tortoises might not be linked to islands, as has previously been thought. In a ...

Significant differences exist in adult carapace lengths among the four species of North American tortoises (Gopherus spp.). However, after measures of whole shell and scute dimensions are adjusted for ...

What do you think of when you hear the word “tortoise”? The giant tortoises that lumber along like tanks over the Galapagos Islands in the Pacific and the Seychelles in the Indian Ocean? The gopher ...