Cushion starfish is a catch-all term for a variety of starfish species. They are distinctive for their rounded bodies and short arms. The round shape is built on a calcium-rich structure that defends ...

Animals and plants around the world are not randomly distributed. They appear to follow trends and patterns. But it's often difficult to figure out if the patterns we see in the natural world actually ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The heads of most ...

One of the wildest wonders of nature is the ability of some animals to reproduce by splitting in half. There is still so much we don't know about this process. So the discovery of a ...

For many creatures, having a limb caught in a predator’s mouth is usually a death sentence. Not starfish, though—they can detach the limb and leave the predator something to chew on while they crawl ...

The natural world is full of interesting creatures with unique biological systems. Among the most interesting creatures is the starfish, also referred to as a sea star. Starfish are unique in that ...

Researchers have discovered a fossil of the earliest starfish-like animal, which helps us understand the origins of the nimble-armed creature. Researchers from the University of Cambridge have ...

A chance discovery of a beautifully preserved fossil in the desert landscape of Morocco has solved one of the great mysteries of biology and palaeontology: how starfish evolved their arms. Starfish ...

With a large variety of starfish in the ocean, there are many unique appearances that can be surprising. One example is the cushion starfish. These marine animals are famous for their inflated bodies ...