Comparison between turtles and tortoises

Turtle	Tortoise
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       Head can be withdrawn only partially inside the shell	Head can be completely withdrawn inside the shell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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