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 ...

Restoring underwater kelp forests by culling overgrazing sea urchins would deliver significant financial benefits, a new ...

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%.

The marine creatures are marching down Australia’s east coast and colonising Port Phillip Bay. But some people are determined ...

The new species has so far only been found in False Bay, South Africa, where it was discovered attached to the burrowing sea urchin Spatagobrissus mirabilis in coarse gravel at a depth of around ...

In 2025, 43 of these valuable licenses were granted to sea urchin fishers, ... "The reason we set up resource management rules is to prevent the species from disappearing," said Piton.

sea-urchin haul She lent me a custom-made tool and showed me where to look, how to measure my take, how to lob the urchin into a mesh bag underwater. I pried the urchins from their perches.