Four-legged snake fossil discovered

Scientists in Brazil have found the first ever four-legged snake, which lived at the time of the dinosaurs and probably dug burrows.

At more than 100 million years old, it pre-dates several other ancient snake species which had only hind limbs.

Experts believe that the reptile used its tiny legs to hold onto prey rather than walking.

It's hoped this discovery will help to explain how snakes evolved from lizards.