Two environmentalists, Dave Schneider and his partner also called Dave, from a herpetological associates group, recently discovered a double-headed baby timber rattlesnake in New Jersey, USA. Scientists have named the double-headed snake Double Dave after the two environmentalists who discovered the snake. The snake has two fully-formed heads and one body. The baby snake is about 8 to 10 inches long. Both the heads work separately, which makes it difficult for the snake to survive in the wild as it can fall prey to eagles, hawks and owls. Scientists have often witnessed that in such cases, one head is slightly more developed than the other and they are known to fight for food. The condition of one body having two heads is known as polycephaly. This occurs when the growth of identical twins from an embryo stops before it splits fully into two independent bodies. Such cases occur once in 1,00,000 births in the wild. Currently, Double Dave is being kept under the care of the herpetological associates due to its poor chance of surviving in the wild. Herpetologists study amphibians and reptiles.