A study shows that turtles use both genetic signals and mechanical forces to form the scales on their heads, revealing a shared heritage with crocodiles and dinosaurs. In vertebrates, the formation of ...

Pangolins, often called “scaly anteaters,” are among nature’s most extraordinary mammals. Their bodies are covered with tough, overlapping scales that act as living armor. These scales are more than ...

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 ...