The turquoise water of Hōnaunau Bay in Hawaii, an area popular with snorkelers and divers, is teeming with spiny creatures ...

Researchers said Honaunau Bay now has an average of 51 sea urchins per square meter. This is considered to be the highest ...

Consider the sea urchin. Specifically, the painted urchin: Lytechinus pictus, a prickly Ping-Pong ball from the eastern Pacific Ocean. The species is a smaller and shorter-spined cousin of the ...

Sunflower sea stars — the giants of sea stars, with up to 21 limbs — eat sea urchins. In their absence, the sea urchin population proliferated. Sea urchins eat kelp, and the explosion in their ...

A mysterious sea urchin plague has spread across the world, causing the near extinction of the creature in some areas and threatening delicate coral reef ecosystems, a new study suggests.

Sea urchin stings can be painful and can lead to infection. They are not usually dangerous, but a few species have a toxin that can have fatal consequences. First aid steps include removing the ...

Their results revealed a clear trend: in blue groper, long-spined sea urchins were detected in just 5.1% of fish, while other sea urchin species were present in 30%.

Petition to delist southern sea otters filed by sea urchin harvesters. In their March 2021 petition to delist the southern sea otter from the federal Endangered Species Act, the California Sea ...

A sea-borne pandemic that wiped out sea urchin populations in the Red Sea has spread and is taking out the species in parts of the Indian Ocean and could go global, scientists in Israel say.