It actually refers to the greenish hue of their body fat, thanks to their ... adult green turtles have a single pair of prefrontal scales on their heads (in front of their eyes), a key identifier.

The green sea turtle is among the most elegant marine creatures cruising through our oceans. Known for their gentle demeanor and striking appearance, these marine turtles are vital to ocean ecosystems ...

In a widely shared video, the turtle suns itself as its fat, leathery legs burst beyond its shell.