Bdelloid rotifers haven't had sex for 30 million years. They are all female and absorb DNA from their environment to keep their genetic pool diverse.
Baby Octopus on a cushion star by: Mike Roberts
The Goliath bird eater spider is found mainly in the rainforests of northern South America and is the largest known species of tarantula in the world. Though they are big enough to eat a bird they rarely do - they typically prefer eating smaller insects and invertebrates. Goliath bird eaters are relatively harmless to humans and only attack when threatened. Their bite is comparable to the sting of a wasp.
The Goliath bird-eater.
Some moths build a fence around their cocoons.
The cranch squid lives in the Northern Atlantic and has photosphores in its eyes which allow it to see in the depths of the ocean to catch their prey. The females can grow to be 40 cm, but their transparent bodies make them incredibly difficult to see. While they are able to squirt ink to avoid predators, they are also able to suck their tentacles inside of them and fill themselves with water to form a large ball.
"A flatworm grew two heads after it was treated with praziquantel, a drug given to people with flatworm infections."
Male Eastern Dobsonfly. Dobsonflies spend the vast majority of their lives, several years, as larvae called hellgrammites. These fearsome larvae eat other insect larvae and can inflict a very painful bite, even drawing blood, as can an adult female. As adults, they live about a week -
Mmmm yeah clam likes it! (GIF)
Marine biologist Roger Hanlon and camouflage.