Top 10 Animals With Creepy Behaviors

Mass Suicide

As crazy as it is, this behavior doesn’t just occur in one species. We know many species to commit mass suicides (though not in lemmings, as is popularly believed). The range of species known to kill themselves en masse is staggering—everything from insects to birds to amphibians to mammals and more. And we rarely have any good idea why.

Torture Your Food

Speaking of cetaceans, they don’t just harm themselves. Before they kill their prey, they have a habit of torturing it, too. For fun. Orcas, for example, are known to ‘toy’ with their prey, grabbing them and releasing them again and again. They’ve also been recorded submerging their helpless prey (often air-breathing seals) in their jaws briefly, just to bring them back up and back down over and over.

Spartan Eagles

Golden eagles are one of the largest eagle species, and eagles are some of the largest birds of prey. But unlike the few larger species, which are mainly vultures and condors, eagles obtain the majority of their food from active hunting, not scavenging. This typically means rabbits and mid-sized rodents but can include essentially anything that eagles can reasonably takedown—including mountain goats, which they sometimes kill by throwing them off cliffs.

Storm Hunter

Perhaps it’s better to say that this behavior is more metal than creepy. But if you’re a wild deer in this situation, there’s little difference. Tigers have been seen using thunderstorms as camouflage for their hunts.

Venomous Armpits

Slow lorises are an internet favorite for their cute and somewhat derpy appearance. And one behavior, in particular, has made for sharable video fodder again and again. When “tickled,” Lorises tend to raise their arms straight up, which has caused many to assume that they simply love being tickled. In reality, the Lorises feel threatened by the touch and are revealing the deadly venom glands in their armpits.

The Taste of Human Flesh

Herbivores eat meat, too, and it can be terrifying. Thought to be due to nutritional deficiencies, a whole range of herbivores have been spotted turning to carnivory from time to time. Due to how common they are, this most often happens with deer. Usually, they feast on small woodland critters, but it was human flesh in at least one instance. At a body farm in Texas, a deer was caught on film “gnawing on a (human) rib bone.”

Stronger Than Steel

You may have heard the dubious claim that some spider silk is stronger than steel. Well, that’s actually true. Though only some spiders make webs, all of them produce silk, which they use in several ways (or don’t use at all). There are, therefore, many different types of silk, and some, like “dragline silk,” are indeed scary strong.

Power Punch

It’s a well-known fun fact that mantis shrimps are impossible alien monsters. For one thing, they have 16 photoreceptors (compared to our three), so can see potentially millions of more colors than we can. But the creepiest thing about mantis shrimp is their punch.

Organ Bombs

There is a behavior known to biologists as autotomy, in which an animal deliberately sheds part of its body for self-defense. The most famous example is lizards shedding their tails to escape predators. But sea cucumbers take the strategy to a whole new level.

Dead Body Camouflage

Normal assassin bugs are creepy enough. They feed on their prey by stabbing it with their proboscis, injecting it with a paralyzing agent, then injecting it with proteins that dissolve it from the inside out (while still alive and paralyzed), and lastly, sucking out the gooey innards. But one species, Acanthaspis petax, is even worse.