Hi, i have a question- Does tortoise have shell from begining?
I don't know. If yes then did it has same protective characteristics? If not then which organ of their ancestors became the shell? Also what gives a tortoise long life span? plz answer if you can.
I don't know. If yes then did it has same protective characteristics? If not then which organ of their ancestors became the shell? Also what gives a tortoise long life span? plz answer if you can.
