If cornered, the Asian cobra will bite again, and again, injecting a large quantity of venom into its victim. Some species can even shoot their venom out. Once attacked, the toxins in the venom can cause paralyzation and lead to respiratory failure or cardiac arrest.
Brazilian Wandering Spider
Known as one of the world’s deadliest spiders, a bite can cause irregular heartbeats, immediate pain and cold sweats. If untreated, results could be fatal. In men? It can cause erections lasting for hours and can lead to impotence.