Snakes are pretty incredible animals, the poisonous ones even more so. Trace explains how snakes evolved to become venomous, and why they must keep evolving this tool to keep their deadly reputation.
Fiercely carnivorous mice that attack and kill deadly scorpions feel no pain from their prey's sting, and new research reveals why.
What's driven vipers to evolve a deadly venom? A need to defend themselves against opossums.
Snakes have a viscous way of using their venom.