Why Do Venomous Animals Live In Warm Climates?

Derek Muller always wondered why Australia has so many venomous animals that can kill you while Canada has virtually none. But it’s not just Australia – it seems like all beautiful, warm places are cursed with venomous native species. So he set out to find the truth: why have all these venomous species evolved in the world’s best holiday destinations?

Suitable for older (high school) students, this video comes up with different theories and puts them to the test. The results were not what Derek expected.