In the vast theater of nature, some creatures have mastered the art of regeneration, making losing a limb, tail, or even an ...

Scientists are racing to save sea stars from extinction through breeding. Here's what they're learning about the different ...

Echinoderm means “spiny skin” in Greek. Echinoderms are found in ocean ecosystems worldwide, from rocky shores to the deep sea. Animals in this phylum are characterized by radial symmetry as ...

Not hundreds, not thousands, but perhaps tens of thousands of these animals that scientists collectively call "the echinoderms". It's a great name, derived from the Greek for "hedgehog", or "spiny ...

The soft, cylindrical sea cucumber looks like a vegetable — and in some countries, it's a delicacy because of its nutritional ...