Called by-the-wind sailor or velella velella, here's what to know about the small, glassy jellyfish-like critters washing up on local beaches.

Imagine diving into a crystal-clear ocean and suddenly coming face-to-face with a bustling metropolis built not by humans, ...

No it's a beautiful echinoderm! Feather stars (Crinoidea) are one of the prettiest animals in the ocean, coming in a vast array of colors and patterns. These elegant animals are related to starfish ...