Comparison between turtles and tortoises

1.       Marine reptile
Terrestrial reptile
2.       Fore-limbs are clawless and modified into paddles
Fore-limbs with clawed digits
3.       Heart-shaped carapace
Oval-shaped carapace
4.       Head can be withdrawn only partially inside the shell
Head can be completely withdrawn inside the shell
5.       E.g. Chelone
E.g. Testudo, Trionyx


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