Cetaceans have only vestigial hind limbs.
Dolphin, whale...
Without any mutations, mammals have 4 limbs (2 arms/forearms, 2 legs)
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Hippos have four limbs.
Yes both mammals and reptiles are tetrapods and have 4 limbs . Both possess amnion which is extraembryonic membrane .
They have hair, a skelaton, 4 limbs, circulatory system w/4 chambered heart, and are endothermic
Mammals limbs look different from species to species. Limbs are prehensile or jointed appendages and include arms (from the shoulder down) and legs (from the hip down).
No. Mammals do not regenerate their limbs.
Like all terrestrial mammals, honey possums have four limbs.
All mammals have four legs, or at least four limbs if they're bipedal such as us, or in the case of bats. Whales have vestigial hind legs, in the form of a pelvis hidden halfway down their tail, and the flippers are their front legs. In fact, all land vertebrates (amphibians, reptiles, mammals, birds) have four limbs. ^^
Mammals have forelimbs, hind limbs and tails. Even ears can be considered appendages.
All mammals have four limbs.