Pigs, rats, cats and mongooses, all brought to the island decades earlier by humans, were to blame for their demise, preying ...

Lamniform sharks such as great whites and tiger sharks are famous for their size. The first such giants evolved 15 million ...

A study of marine parks spanning Mexico to Ecuador found key differences that allow ecosystems to flourish. Seen from above the ocean surface, the tiny island of Roca Partida in Mexico's Revillagigedo ...

Decades ago, India’s tigers were on the brink of extinction. Slowly, their numbers have rebounded. But that ecological success has prompted a dire problem—and a race to save many of them from genetic ...