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32 of the most dangerous animals on Earth

You may be surprised to discover that physical strength and size isn’t what sets apart the world’s most dangerous animals. 

In fact, some of the world’s smallest creatures can be the deadliest to humans, spreading life-threatening diseases to millions each year with a pin-prick size bite. From the box jellyfish to the pufferfish, the ocean is also home to some of the world’s most venomous and poisonous creatures on the planet. And humans are among the deadliest animals of all; we kill each other and inflict violence at staggering rates.


(Image credit: nechaev-kon/Getty Images)

The world’s most deadly non-human animal is the tiny mosquito. Mosquito-borne illnesses, such as malaria, kill an average 780,000 people a year, according to the World Health Organization (WHO). This flying, blood-sucking insect is commonly found in hot, humid environments near a water source, which enables them to breed and thrive. 

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