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Rays

Sharks, rays live longer than previously estimated: Study

James Cook University researcher Alastair Harry conducted a study on 53 sharks and rays after which it was discovered that a bull shark can live up to the age of 40, twice as long as had been estimated earlier.

Sep 29, 2017, 11:37 AM IST

25% of sharks and rays at high risk of extinction

A new assessment by the International Union for Conservation of Nature (IUCN) has revealed that a quarter of the world`s sharks and rays are at risk of extinction.

Jan 22, 2014, 12:40 PM IST