1. Meerkats are baby-killing tyrants. fzhi555/Flickr Creative Commons / Via Flickr: fzhi555 In any clan of meerkats, the dominant female is the only one allowed to have babies — to the point that she will straight-up just murder all the offspring of any other female in the clan. Oh, and then she'll force the other females to raise her babies. No wonder Timon from The Lion King decided to hang out with a giant warthog instead. 2. Dolphins torture their prey. Chase Cheviron / Flickr Creative Commons / Via Flickr: ccheviron Don't be fooled by their smiles or their ability to toss beach balls through hoops — bottle-nosed dolphins have a dark side. Pods of dolphins have been seen chasing and attacking porpoises for sport, and even playing "volleyball" with baby sharks. 3. Dachshunds can, and will, attack you if they feel threatened. kelly/Flickr Creative Commons / Via Flickr: asillymuse Pitbulls get most of the bad press, but a 2008 study determined that despite their small size, dachshunds are actually the most aggressive dog breed, and the ones more likely to bite strangers and lash out at their owners. One dachshund even gnawed off his owner's toe while she slept. 4. Chinchillas will manipulate you and any situation for attention. gehantao/Flickr Creative Commons / Via Flickr: gehantao If you're thinking of getting a chinchilla as a pet, consider the fact that they're tiny little drama queens. If they don't think they're getting enough attention, they'll fake sick, or even spray urine all over you and your house. 5. Emperor penguins kidnap other penguins's babies. Christopher Michel/Flickr Creative Commons / Via Flickr: cmichel67 If a female emperor penguin loses her own chick, she'll occasionally steal a baby belonging to another penguin. Even worse, she'll quickly tire of her cute little prisoner and just abandon it, leaving it to die from exposure or from predator attacks. 6. Platypuses will poison you. Melbourne Watering/Flickr Creative Commons / Via Flickr: melbournewater They may look like the cute, harmless offpsring of an otter and a duck, but platypuses have venomous stingers on their back feet. The venom likely can't kill humans, but their stingers still hurt like a motherfucker. 7. The slow loris has killer arms. Ben Robinson/Flickr Creative Commons / Via Flickr: squicker Literally. Slow lorises excretes a poison from their elbows. They mix it with their saliva to create a really toxic bite that can send the victim into anaphylactic shock. 8. Hippopotamuses are hungry-hungry for way more than marbles. Dean B. Krafft/Flickr Creative Commons / Via Flickr: krafft Hippos are actually considered the most aggressive and dangerous animals in Africa, and it's estimated that they're responsible for more human deaths than lions, elephants, rhinos, buffalo, and leopards combined. 9. Cassowaries will tear you to shreds. paVan/Flickr Creative Commons / Via Flickr: _pavan_ Their head markings say, "Watch my YouTube makeup tutorial!" but their five-inch claws and super-fast running speed say, "Get back here so I can literally rip out your guts." 10. Polar bears are cannibals. Olga_gl / Getty Images THEY EAT EACH OTHER. 11. Hamsters? Also cannibals. the_colemans/Flickr Creative Commons / Via Flickr: the_colmans THEY EAT THEIR OWN BABIES. 12. Wombats are living battering rams. Jennifer Whetzel/Flickr Creative Commons / Via Flickr: whetzel They may look like fuzzy, harmless oafs, but wombats are highly aggressive and won't hesitate to attack humans. They use their heavy, dense bodies to knock people over and then repeatedly bite them. 13. Sugar gliders don't care about endangered species. GarettTT/Flickr Creative Commons / Via Flickr: garrettt What could these cute little fluffernutters do that's so terrible? Oh, they've just eaten so many Tasmanian swift parrot chicks that the birds are now critically endangered. 14. And margays will mentally torture their prey. David Ellis/Flickr Creative Commons / Via Flickr: david44149 The spotted fur and anime eyes are wicked cute, but margays are masters of manipulation: They mimic the sound of scared baby monkeys to lure their prey towards them. So not cool, you guys.