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They take the shape of a cylindrical stumpy leg for walking (like a terrestrial tortoise on land) and can then turn into an aquatic flipper for swimming (like a sea turtle in the ocean).

Pedro left his outdoor enclosure and lost his other leg ... Veterinarians make Lego wheelchair for turtle who lost his legs by: Talia Naquin. Posted: Jul 1, 2019 / 06:16 AM EDT.

A sea turtle that lost her front fins to a shark attack was bidding to match "Blade Runner" Oscar Pistorius on Tuesday, as she donned the latest in artificial flipper technology in Japan.