Strange creatures straight out of a science-fiction movie have been captured by scientists off the coast of Antarctica. Pink and bulbous "sea pigs", hand-sized sea spiders and delicate sea butterflies ...

The knotty sea spider, Pycnogonum litorale, is not actually a spider, but it does represent a significant early branch in the genetic family tree that includes spiders, as well as scorpions, ticks and ...

A deep-sea fish species with unusual cheek patterns has been discovered in the South China Sea after it was listed on online seafood markets. The fish has been named Branchiostegus sanae because its ...

Far beneath the waves, animals evolve in strange and surprising ways, often becoming much larger than their shallow-water ...

Few animals seem less animal-like than sea cucumbers. The long, slender beings often appear motionless like the vegetable they resemble as they bask on the seafloor. They lack a brain, eyes or obvious ...

The anemone is part of a new species, genus and family, according to the study. Photo by Yanghong Yu via Unsplash A “strange” creature recorded in the deep waters off the coast of Japan represents an ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. Rachael has a degree in Zoology from the ...

A hoodwinker sunfish, or Mola tecta, can weigh as much as 4,400 pounds and can grow up to nine feet long Charlotte Phillipp is a Weekend Writer-Reporter at PEOPLE. She has been working at PEOPLE since ...

Portuguese man-of-war are washing up on North Carolina beaches, forcing officials to issue a warning to beachgoers along a 150-mile stretch of sand from Cape Lookout to the South Carolina state line.