because this particular species has no natural predators and additionally can go long periods of time without feeding. This species is listed as vulnerable, with the primary threats being pollution and habitat loss. 5/5

The skin of this animal is so thin that, in fact, you can see the animal's internal organs on its underbelly. The Olm is noted as having one of the longest life spans of any amphibious species, with ages reaching up to 68 to 100+ years in their natural habitats this being noted. 4/5

Their more unique feature is their long, serpentine-like bodies, which can reach up to 10 inches in length. These feature a thin, pale white or white-pink colored skin with visible gills appearing in a red coloration, 3/5

These cave salamanders, which are distantly related to the common axolotl, are completely aquatic and are additionally completely blind, featuring two small rudimentary eyes covered by a thin layer of skin, 2/5

This species feeds on young shoots of bamboo and pine nuts or other soft plant forms, scavenging for them at night. This species is listed as "least concern" and can be fairly common in the wilds of Central and Southern Asia. 3/3

With a lighter rust red coloration on the underbelly, featuring additionally, large membranous skin allowing this animal to achieve a short-range glide, which is used to bound from tree to tree, this species is the second largest species of squirrel in the world, second only to the Malabar squirrel

These fish are popular aquarium fish for the more skilled keepers, as they are nocturnal fish with some notion of territorial behavior and can grow up to 12 inches long. These fish can be found in fish stores and aquariums, or even in selective breeders for this particular species. 4/4

They are slightly electrically capable of producing small electric field pulses to both communicate, hunt for food, and navigate darkened environments, but are weak enough to be harmless to humans and most tankmaits. But they are passive hunters and will prey on fish smaller than themselves. 3/4

By undulating, “ a smooth ribbon-like movement to the left and right,” this ribbon-like appendage allows this fish to achieve stable locomotion in water, even allowing this fish to move in eight different directions. 2/4

To start, these fish and their relatives look much different rather hand featuring most fins with many other such as a lack of dorsal, pectoral, anal, and tail fins, and instead feature a long, singular fin that runs to the animal's “tail point” making this animal look more eel-like than fish, 2/4

could make it a pinup calendar one for each month and the 13 on January of the next year.

with a ebony-black crest and crimson-red breast that tapers into their under bellies ending with a snowy white rump with black tail feathers, featuring a broad curved bill used for getting through the tough skin of various fruits found in West Africa such as the common fig. 2/2

being like a wasp sting in humans (with notable risk to those with allergic reactions), with bites typically coming from defensive actions, this species is known to be a popular pet among spider and tarantula enthusiasts who are adept at caring for tarantulas.

Instead, this species chooses to build its nest in a ground burrow, spinning a web shell to line the inside like decorative drapes on the walls, floors, and ceilings of its den. This species is venomous but only lethal to smaller species.

When this species was originally discovered, the name was given from a copper imprint piece in the 1800s of a goliath consuming a captured hummingbird. These spiders are ambush predators, choosing to hunt prey via capture rather than spin webs to catch prey.

Given to the Australian huntsman spider, despite their name, this species rarely feeds on birds, often preferring to feed on large insects, frogs, toads, lizards, and some small mammals.

allowing them to discover living prey. These species are living fossils originating from over 125 million years ago from common ancestors and evolving over many generations to become the abyssal predator we see today.

capable of extending these jaws forward to envelop prey such as other small abyssal fishes featuring long curved teeth to latch onto prey, being blind as there is no light in these depths, their large noses brush past prey using electroreceptor signals from nerve endings,

Growing to 10 to 20 feet in length, this species of shark gets its name from its rather horrid appearance, including its long, pointed nose, which is densely packed with sensory nerves to aid in hunting in the deep, dark depths. Another unique feature of this species is its hinged jaws,