Georgia Sea Turtle Center - What makes up a turtle's shell? 🐢 The top layer is Keratin, the same material as our hair and nails. Underneath are the spine (in blue) and

Earth is Blue: daily photos and weekly videos from our national

Reptiles Keratin SKIN and HOW Turtles' or Tortoises' HEAL – Crazy Plants Crazy Critters

Turtle Anatomy - Epic Sea Turtle Site

What the shell? - Zoo Atlanta

Georgia Sea Turtle Center - What makes up a turtle's shell? 🐢 The

Sea Turtle Anatomy - ECOMAR

Turtle, Species, Classification, & Facts

Turtle shell - Wikipedia

What's Inside a Turtle Shell? [Turtle Anatomy] - All Turtles

AP1 Ch5 Study Guide - BIOL 2113 - Chapter 5: The Tissue Level of

The Keratin Connection: A Breakthrough in Sea Turtle Research

Georgia Sea Turtle Center

What makes a turtle a vertebrate? - Quora

Turtle shell - Wikipedia

The secret of the turtle shell