The unfortunately named blobfish, the world's most miserable-looking fish who is now in danger of being wiped out. The blobfish has already acquired a reputation for looking sad thanks to its miserable mush. The bloated bottom dweller, which can grow up to 12 inches, lives at depths of up to 900m making it rarely seen by humans. But thanks to increasing fishing of the seas Down Under the fish is being dragged up with other catches. Despite being unedible itself, the blobfish unluckily lives at the same depths as other more appetising ocean organisms, including crab and lobster. (Credit Image: © Kerryn Parkinson/ NORFANZ/Caters News/ZUMA Press)

The Proboscis Monkey's distinct nose is thought to be used by the males to attract females of the species. Living in Borneo, it can swim up to 20 metres underwater, making it one of the most aquatic primates.

While the bat pictured here is actually from Indiana, some of the 18 species of bats in Britain bear a similar resemblance. Each has a slight variation on the evolutionary features that have come in handy for the bats, including a protruding nose and large ears. Credit: Indiana DNR; Rich Fields

The greater short-horned lizard lives in desert areas of Canada, and fends off enemies by shooting blood out of its eyes. It is endangered in Saskatchewan and Alberta. (Photo courtesy Parks Canada)

The Flightless Dung Beetle is dependent on elephants and buffaloes, consuming their dung for sustenance.

The Kakapo (stuffed one shown in this picture) is a flightless parrot in New Zealand. Because of its evolutionary process, it hasn't developed fear against its predators, meaning the world's heaviest parrot very susceptible to other hungry animals. Carnegie Museum of Art - Museum of Natural History, Kakapo

The Pig-Nosed Turtle evolved from land animals, therefore it still needs to breathe air. Its pointed nose works as a snorkel, allowing it to continue swimming in the freshwater where it resides.

The Titicaca water frog is known for its unique skin folds on its body, which actually help it store air and stay underwater longer without coming up to the surface to breathe. Image of the Aquatic Scrotum Frog of Lake Titicaca, from The Featured Creature via the Denver Zoo.

The Dromedary Jumping Slug leaps by coiling its body, and releasing it like a spring. Image of the Dromedary Jumping Slug from Project Noah, photo taken by VivBraznell

The Axolotl never reaches adult maturity, like other salamanders, which allows it to regenerate any body part if it is lost. Unfortunately, this unique ability has landed it in research labs across the world, with only a small number still living in certain lakes in Mexico.

The European Common Eel's numbers have dropped by 90% over the last two decades. It makes a long journey to complete its road to adulthood, traveling between fresh and sea water over the course of its lifetime.