Nearly 4000 species of snakes have been discovered worldwide
They're cold blooded and need external warmth for energy to survive
If they're too cold they'll struggle to digest food or move around
They have the ability to allow their metabolism to slow down
Some snakes can go over a year without eating anything
They've adapted to many habitats and become masters of hunting
Some can even detect potential prey using infrared
In the roof of their mouth they have a special feature a Jacobsons organ
Enabling them to pick up scent molecules collected by their tongue
Most snakes are incredibly dangerous and contain lethal venom
While Japanese grass snakes eat toads and store their poison as a deterrent
They have a unique skeleton that is extremely flexible
There are four groups of ways they move using various scales and muscles