Sydney Funnel-Web Spider
The Sydney Funnel-Web spider is native to Australia, a continent that’s known for having some of the deadliest creatures on the planet. So, it’s no surprise that this spider has a toxin called atraxotoxin that’s strong enough to shut down the nervous system and kill an adult human within 30 minutes. And don’t count on shoes to protect you because their fangs are capable of piercing through leather. Oddly enough, their venom is not a threat to household pets like cats and dogs.