Lou-seal being released

The Seal That Flew 1000 Miles To Get Home

Found stranded on a subtropical beach, the mystery seal finally comes home to its North Atlantic waters.
Source: https://commons.wikimedia.org/wiki/File:Argonauta_argo_Merculiano.jpg

Paper Nautilus, Octopus of the Open Sea

Why the argonaut, or paper nautilus, may be your new favorite cephalopod.
A cluster of deep sea octopus Muusoctopus robustus.

The Last Vigil of the Octopus Parent

For some species of octopus, reproducing is a lonely act that ends in death.
Coral conservationist Ruth Gates

Remembering Coral Conservationist Ruth Gates

Dr. Ruth Gates worked tirelessly to conserve coral reefs, promoting a controversial idea called assisted evolution.
sargassum seaweed dumped on beach

The Great Seaweed Invasion

In the Caribbean, sargassum deposits have grown to unprecedented sizes, obscuring the sand and turning nearshore waters into seething sargassum soup.
Scuba diver on shipwreck

Do Artificial Reefs Work?

Some authorities are trying to create fish habitats by cleaning old structures and dumping them at sea. But do these artificial reefs really work?
Red snapper chromolithograph 1898

Fish Are Smarter Than You Think

Fish intelligence? Yes, many studies have documented the ability of fish to learn from their environment. Fish exposed to a more complicated environment have an edge in learning.
Crown-of-thorns starfish crown of thorns

When Crown-of-Thorns Starfish Attack

Australia's iconic Great Barrier Reef is facing a threat from a massive outbreak of crown-of-thorns starfish.
Japanese tsunami debris

Marine Debris and Its Dangerous Hitchhikers

Larger pieces of floating debris, like that caused by the Japanese tsunami, may carry hitchhikers in the form of organisms native to their place of origin.
Mating Mallard Ducks

Unveiling Nature’s Mysteries: Mutant Sea Stars, Junk Jellyfish, and Duck Sex

Confront nature's mysteries, scientists find mutant sea stars surviving in warming waters and that sexual competition forces ducks to grow longer penises.