A new blue octopus species, Microeledone galapagensis, was recently discovered near Darwin Island in northern Galápagos.

Color change in animals is a response shaped by evolution. Each species has developed its own method and reason for this ...

Researchers have discovered a remarkable new species of sea slug that lives in the deep sea. Nicknamed the 'mystery mollusc,' the nudibranch Bathydevius caudactylus swims through the ocean's midnight ...

From shallow reefs to pitch-black depths, the ocean is alive with sparkling lights. Fish, squid, clams and plankton have found a wide range of ways to glow, shimmer and flash, lighting up the dark ...