logo

Video encyclopedia

Aelex

6:25

Baby turtle's first steps - BBC

3:31

All Better — Sea Turtle Covered In Barnacles Needs Our Help Getting Back To The Ocean! | Dodo Kids

12:37

Sea Turtles (HD) | JONATHAN BIRD'S BLUE WORLD

8:46

Amazing Catching Turtles in the Nest and Fishing Betta fish Lobster in a lake near the village

Turtles are diapsids of the order Testudines characterized by a special bony or cartilaginous shell developed from their ribs and acting as a shield. "Turtle" may refer to the order as a whole or to fresh-water and sea-dwelling testudines. The order Testudines includes both extant (living) and extinct species. The earliest known members of this group date from 220 million years ago, making turtles one of the oldest reptile groups and a more ancient group than snakes or crocodilians. Of the 356 known species alive today, some are highly endangered.
    • Naming and etymology 

    • Anatomy and morphology 

    • Behavior 

    • Reproduction 

    • Ecology and life history 

    • Systematics and evolution 

    • Fossil record 

    • In human culture 

    • Conservation status