Wondering about the world's weirdest sea creatures? We've compiled this list of the 20 weirdest animals in the ocean to show ...

The blue whale is the largest animal known to have ever lived, reaching lengths of nearly 100 feet and weighing more than 300 ...

Have you ever seen a blue sea creature like this one? The oceans of the world are home to some unusual creatures, and few compare to the likes of this sea slug. So, let’s dive a little deeper into ...

Thousands of translucent blue marine organisms, known as by-the-wind sailors (Velella velella), have recently washed ashore along the beaches of Northern California. These sudden mass strandings, ...

California beaches have been the site of some ghastly scenes this year. Dying sea lions, dolphins, seagulls, pelicans and even a minke whale have washed up on the sands from San Diego to Santa Barbara ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Venomous sea slugs have been spotted along ...

Thousands of electric blue, jellyfish-like sea creatures washed up on Central Coast beaches this week. Known by the nickname of by-the-wind sailors, velella velella are hydrozoans — a species related ...