sea urchins

Virus probably behind deaths of millions of starfish

Virus probably behind deaths of millions of starfish

Millions of starfish have died in recent months on the Pacific coast from Alaska to Mexico due to an epidemic across the ocean ecosystem caused by a pathogen agent that has been present for decades, recent research shows.

Dec 09, 2014, 10:21 AM IST

Caribbean coral reefs could vanish in 20 years

Many of the Caribbean`s coral reefs could vanish in the next 20 years, according to a new report which found that healthy coral reefs have declined by about 50 per cent in the past four decades.

Jul 02, 2014, 18:12 PM IST

Modern-day deep-sea animals may have evolved earlier than thought

Present day deep-sea fauna like sea urchins, starfish and sea cucumbers may have evolved earlier than previously believed.

Oct 11, 2012, 17:32 PM IST

Sea cucumbers `may hold key to looking young`

Sea cucumbers and sea urchins could hold the key to maintaining a youthful appearance, researchers say.

Oct 02, 2012, 15:29 PM IST

Sea urchins see with their body - minus eyes

Sea urchins have several genes that are coded for a widely occurring eye protein, opsin, reports the journal Proceedings of the National Academy of Sciences.

Jul 01, 2011, 13:48 PM IST

Study finds how sea urchins affect coral reefs’ growth

A study has found that overfished reef systems have more sea urchins—organisms that in turn eat coral algae.

Jan 15, 2011, 18:43 PM IST