Swimming through the shadowy waters off Palau, scuba divers watched life on a coral reef after dark. One reddish sea creature with 17 “feather”-like arms caught their attention — and for good reason.

Scientists scuba diving at night in Palau found a “cryptic” sea creature with 17 arms and discovered a new species, a study said. Photo from Chen Irene via Unsplash ...

17 best scuba diving sites in the world, from Indonesia to Costa Rica. ... If you crave high-energy diving and big marine life, Palau is known to deliver in cinematic fashion.

Scientists scuba diving at night in Palau found a “cryptic” sea creature with 17 arms and discovered a new species, a study said. Photo from Chen Irene via Unsplash ...

Scientists scuba diving at night in Palau found a “cryptic” sea creature with 17 arms and discovered a new species, a study said. Photo from Chen Irene via Unsplash ...

Scientists scuba diving at night in Palau found a “cryptic” sea creature with 17 arms and discovered a new species, a study said. Photo from Chen Irene via Unsplash Swimming through the ...

Scientists scuba diving at night in Palau found a “cryptic” sea creature with 17 arms and discovered a new species, a study said. Photo from Chen Irene via Unsplash ...

Scientists scuba diving at night in Palau found a “cryptic” sea creature with 17 arms and discovered a new species, a study said. Photo from Chen Irene via Unsplash ...

Scientists scuba diving at night in Palau found a “cryptic” sea creature with 17 arms and discovered a new species, a study said. Photo from Chen Irene via Unsplash ...

Scientists scuba diving at night in Palau found a “cryptic” sea creature with 17 arms and discovered a new species, a study said. Photo from Chen Irene via Unsplash Swimming through the ...