EVERYDAY SCIENCE

Detailed explanation-1: -Pythons and boa constrictors have tiny hind leg bones buried in muscles toward their tail ends. Such features, either useless or poorly suited to performing specific tasks, are described as vestigial. They are also intriguing evidence of the evolutionary histories of species. So option C is the correct answer.

Detailed explanation-2: -Of the extant snakes, like the python and boa, the Boidae have rudimentary hind limbs only. The most modern snakes, like the viper, Colubroidea, are completely limbless.

Detailed explanation-3: -Complete answer: 1)The convergent evolution has resulted in the formation of snakes without any limbs, so basically snakes do not have any legs and thus snakes are known as limbless reptiles.

Detailed explanation-4: -So some snakes, as we say, boas and pythons and little worm snakes do have remnants of the hind limb. And those are the remnants of the fact that snakes came from lizards, and lizards have feet. So although there’s no leg on the snake, there are toes.

Detailed explanation-5: -“They don’t need them, ” Morin said. “From the way they move, to the places they can go and some of the methods of subduing prey, like constriction, having legs would simply get in the way. Over millions of years they gradually lost legs, and they’ve even lost shoulders and hips.