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25 Of The Most Dangerous Animals In The World

Published 1 year ago on August 14, 2018
By Hugo

Hollywood has long told us that sharks and spiders are the animals we should fear most, but if you do a bit of research, you'll find that cases of blood-sucking spiders and bone-crushing sharks are few and far between. In reality, neither of these creatures come close to matching the brutality these deadly animals are capable of.

Shutterstock/ Stephen Lew

Some are even known to savour their prey and administer a slow and painful death so with such gruesomeness in mind we've decided to go all macabre on you and chronicle 25 of the world's deadliest animals.

1. Box Jellyfish


Named for its boxy shape, this jellyfish has a sting that can cause cardiac arrest and nerve damage if given a hefty enough dose of it!

Its tentacles stretch more than two meters (6.4 feet), and they can lurk in muddy, unclear waters during the warmer months when people are looking to go swimming. It's for these reasons that National Geographic gave this feared aquatic species a 10/10 danger rating.

Rather than drifting as regular jellyfish do, their danger is made worse by how fast they can swim, with box jellyfish capable of reaching speeds of up to 1.5 to 2 metres per second, which doesn't bode well if you're trying to swim away from one. 

2. Red-Bellied Piranha


While the red-bellied piranha won't tear the flesh off your bones in a matter of seconds as the media would have you believe, all species of piranha, including red-bellied piranhas, are mostly scavengers and are more likely to feast off dead animals and insects and plants.

However, attacks on humans are quite common, though they are rarely fatal and usually occur during the dry season when food is scarce. These attacks result in multiple cuts on hands and feet, but nothing that would require surgery. 

Found throughout the South American continent- especially in the Neotropical rivers of Argentina, Brazil, Bolivia, Colombia, Ecuador, Guyana, Paraguay, Peru, Uruguay, and Venezuela- the red-bellied piranha, unlike many species of animal in the Amazonian, is not endangered, but, as stated above, has been given a rather bad rep over the years from a series of Hollywood flicks painting them in a bad light.

3. Saltwater Crocodile

Krieng Meemano/

Extremely good at ambushing prey with powerful jaws that clamp and twist as they drag victims under water, these crocs lurk in coastal areas and rivers and estuaries and are predominantly found in Northern Australia. Growing to around 4.5 meters in length (although bigger have been found), these are quite hefty predators to come across and because of their athletic prowess and natural strength, are the most dangerous extant crocodile known to humans.

Their prey is typically drowned or swallowed whole, and this outcome can happen to any animal that crosses its path- including humans and sharks.

4. The Common Death Adder

Wikimedia Commons

A species of death adder native to large swathes of Eastern Australia and parts of the south, It is one of the most venomous land snakes in not just Australia but the world. While sightings are common, the snake is facing heightened threats of extinction from a cane toad invasion that has wrecked havoc with much of Australia's wildlife.

If you do come across one of these creatures, bear in mind that they possess the longest fangs of any Australian snake, so your best bet is probably to run rather than stop and take pictures with it. A rare species, the common death adder is actually a member of the Elapidae family rather than the European adder (Vipera berus), a species not typically found in Australia.

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