Appendages that can become prehensile include: 1  Prehensile feet: The hands of primates are all prehensile to varying degrees. The claws of cats are prehensile. 2  Prehensile tails – Many extant lizards have prehensile tails (geckos, chameleons, and a species of skink). Seahorses grip seaweed with their tails. Several fossil animals have been interpreted as having prehensile tails, including several Late Triassic drepanosaurs, and possibly the Late Permian synapsid Suminia.