Eli5: Why is it that everything in Australia is the most poisonous/venomous? Snakes/spiders/plants?

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Other places have plenty of poisonous shit, but the most worst of every category are all in Australia? What is it about Aus that causes that?

In: Biology

4 Answers

Anonymous 0 Comments

Australia doesn’t actually have that many poisonous/venomous (poisonous actually isn’t the right term hear, a snake that bites you and injects you with something isn’t poisonous, it’s venomous, while something that you eat and then kills you is poisonous, basically venom bites you, you bite poison.) l animals in it. Just for brevity purposes I’m gonna just keep saying poisonous in the rest of this post, but I mean poisonous/venomous.

Brazil and Mexico both have more poisonous species than Australia does.

Really, all tropical areas have on average more of some form of poisonous animal, the most common being spiders or snakes/reptiles. The theory behind this is that since the tropics have more energy on average (more sunlight, which makes more plants, which makes more animals that eat plants) it is easier to sustain a high energy activity like making your own poison, compared to more northern/souther climates.

Really, Australia just gets a lot of media/meme attention, particularly cuz it has the platypus, the only poisonous/venomous mammal, but in total numbers it really isn’t that crazy.

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