Great Hammerhead Shark

The Great Hammerhead Shark (Sphyrna mokarran) is the largest and most awe-inspiring member of the hammerhead family (Sphyrnidae), reaching lengths of up to 20 feet. Easily distinguished from all other hammerheads by its massive, nearly straight front-edged cephalofoil...

Wide-bodied Pipefish

The Wide-bodied Pipefish (Stigmatopora nigra) is a master of mimicry inhabiting the temperate seagrass beds of southern Australia and New Zealand. Belonging to the family Syngnathidae alongside seahorses and seadragons, this slender fish exhibits remarkable...

Rabbit Fish

The Rabbit Fish (Chimaera monstrosa), commonly known as the ratfish or ghost shark, is an ancient holocephalan cartilaginous fish that cruises the twilight depths of the northeastern Atlantic Ocean. Belonging to a bizarre evolutionary lineage that diverged from true...

Barreleye

The Barreleye (Macropinna microstoma), celebrated across deep-sea oceanography and evolutionary morphology as one of the most surreal vertebrates in the world, is an extraordinary bathypelagic fish belonging to the family Opisthoproctidae. Inhabiting the perpetual...

Pacific Footballfish

The Pacific Footballfish (Himantolophus sagamius) is an extraordinary deep-sea ceratioid anglerfish that haunts the eternal, frigid gloom of the North Pacific abyss. Featuring an almost perfectly globular, soccer-ball-shaped body studded with armored dermal bucklers...

Cave Brotula

The Cave Brotula (Grammonus thalassobathius) is an extraordinary and rarely encountered viviparous marine fish that inhabits the total, lightless gloom of submerged sea caves throughout the Mediterranean Basin. Belonging to the family Bythitidae, this secretive cave...

Toothless Blindcat

The Toothless Blindcat (Trogloglanis pattersoni) is one of the rarest, most anatomically specialized subterranean vertebrates in North America. Restricted entirely to flooded limestone caverns and artesian vaults hundreds of feet beneath San Antonio, Texas, within the...

Hydrothermal Vent Tonguefish

The Hydrothermal Vent Tonguefish (Symphurus thermophilus) represents one of the most astonishing evolutionary feats of vertebrate extremophile resilience on Earth. First described by marine ichthyologists in 2008, this small, tear-shaped flatfish thrives along active...

Red Velvetfish

The Red Velvetfish (Gnathathanacanthus goetzeei) is an extraordinary and bizarre marine teleost endemic exclusively to the temperate coastal waters of southern Australia. Occupying its own distinct monospecific family, Gnathathanacanthidae, this solitary reef dweller...

Ninespine Stickleback

The Ninespine Stickleback (Pungitius pungitius) is a small, tough teleost fish with a broad circumpolar distribution across the cold boreal and subarctic waters of the Northern Hemisphere. Distinguished by a row of sharp, isolated dorsal spines along its back, this...