Snakes are part of the reptile family. There are many species of snake throughout the world and they inhabit every continent except Antarctica. Not all snakes are venomous. Snakes have no eyelids, they have a transparent scale protecting their eyes. The venom of snakes is a complex mix of proteins that when released into the victim will quickly spread through the body. Neurotoxic venom is the variety that kills the fastest.
Adult venomous snakes will 'ration' the amount of venom they unleash. However baby snakes have not yet learned this and will release a much higher dose, making them potentially more dangerous than their parents! Cobras and Mambas get all the notoriety, but the most toxic snake of all is the Inland Taipan of Australia. It could kill 100 people with a single bite, but thankfully it reserves its wrath for rats.