Now, many animals have evolved venom systems in order to survive. Nowadays, any species of venomous snakes, any species of spider, any species of scorpion, has its own venom signature, if you will, made out of dozens, if not hundreds, of chemical compounds. And all of those compounds have evolved purely for one purpose: disable and, eventually, kill.
Muchos animales han desarrollado sistemas venenosos para sobrevivir cada especie serpiente, de araña, o de escorpión, tiene su propia firma de veneno hecha de cientos de compuestos químicos. que han evolucionado con un propósito: inhabilitar, y finalmente, matar.