Halalaimus is a microscopic nematode genus commonly found in sediment on the seafloor. It lives 1–5 cm below the sediment ...

A stranded octopus gets a helping hand back to the ocean and takes the time to "high five" the rescuer. What really happened?

Tens of millions of years ago, a diverse array of bird species soared, swam, and thrived amid their scaly reptile cousins—and ...

A surprising fossil find shows that some mosasaurs lived in ancient rivers as oceans changed near the end of the Cretaceous.

Need a last-minute gift? These 9 standout fiction books — from horror to historical to contemporary — are perfect for readers who crave stories that linger long after the last ...

Oxygen tank strapped to his back, Michael del Rosario moves his fins delicately as he glides along an underwater nursery just ...

For deep reef divers, descending into the ocean’s mesophotic layer can feel like exploring the moon. Discovering never-before ...

Like corn kernels in slowly heating oil, the orca sightings began sparse and unpredictable. But at some imperceptible moment, ...

Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater ...

Scientists on California’s Central Coast recently spotted a giant, evasive seven-arm octopus while on a research expedition ...

For those who didn't know, sea lions have a history of charging people who get too close. According to CNN, they are even ...

The deep sea around Antarctica just got a whole lot weirder as researchers have discovered at least 30 previously unknown ...