Turtles are scaly, four-legged animals belonging to reptiles. This so-called animal nation (Order) Testudinata (or Chelonians) is distinctive and easily recognizable by the existence of 'house' or shell (bony shell) is hard and rigid.
This tortoise shell consists of two parts. The top that covers the back is called the carapace and the bottom (ventral, abdomen) is called the plastron. Then each section consists of two layers. The outer layers are usually large and hard scales, and are arranged like tiles, while the inner layers are tightly arranged bone plates like shell. Many species of turtles are alive, now able to hide their heads, legs and tail into the shell, so as to save themselves from the enemy's ganguan
