The ancestors of the present day's slithery snakes used to have full-fledged arms and legs; however, genetic mutations led the reptiles to lose all their limbs approximately 150 million years back based on two new studies.
Evolution has come a long way throughout history. A breakthrough study reveals that human fingers may have evolved from fish fins as the two came from a common cellular origin.
Using a recently unearthed 90 million-year-old fossilized reptile skull, researchers reveal new insight regarding how snakes lost their limbs. It turns out the evolutionary characteristic of burrowing plays a key role.
Embedded in the genetic code of several snake species was DNA that generally controls the development and growth of limbs in other animals.
Today's snakes are known for slithering on the ground, but new surprising research says that the first snakes on Earth were likely stealthy predators that boasted legs, ankles, and even toes.
Millions of years ago, when vertebrates evolved from the sea to land, they had to go through some evolutionary changes, including the development of sex organs. Now, new research is shedding light on these genetic changes after turning lizard limbs into genitalia in the lab.