Ever consider the question of whether a turtle can truly pull its head into its shell like a cartoon representation in a ...

Turtles (Testudines) have captivated evolutionary biologists for decades due to their distinct morphology and ancient origins. Recent studies have elucidated the evolutionary transformations that led ...

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 ...

In vertebrates, the formation of feathers, hair, and scales is typically governed by molecular genetic factors. However, crocodile head scales are an exception, as they form through a purely ...

Avise, John C., Bowen, Brian W., Lamb, Trip, Meylan, Anne B., and Bermingham, Eldredge. 1992. "Mitochondrial DNA Evolution at a Turtle's Pace - Evidence for Low Genetic Variability and Reduced ...

This one-ton turtle once ruled South America’s rivers — until a changing planet proved too much for even the largest ...