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

Darkness dominates most of the ocean. Sunlight fades quickly as you descend, and by the time you reach the deep sea, natural light disappears entirely. Yet the ocean is far from black. Many marine ...

Bioluminescence first evolved in animals at least 540 million years ago in a group of marine invertebrates called octocorals, according to the results of a new study. The study focuses on an ancient ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The discovery of bioluminescent sand on a San Diego beach ...