Imagine standing on the edge of a primordial sea, with waves crashing against a rocky shore under a sky untouched by birds or ...

Researchers created DNA tools that detect deep-sea marine animals like squids and octopuses by analyzing ocean water.

A new DNA probes allow for efficient surveying of the hidden lives of squids and octopuses in the deep sea. This development ...

But this is still tiny in comparison to the biggest cephalopod species, the colossal squid. Dumbo octopuses live in the deep open ocean ... No sunlight reaches these zones and the water is very cold.

This cephalopod can grow to more than 20 feet and has proved elusive in its deep-sea environs. By Elizabeth Preston In March, Kat Bolstad returned from an Antarctic expedition where she had used a ...