The emperor penguin, the largest of all penguins, could face extinction by the end of the 21st century. Research published in "Biological Conservation" suggests a 90 percent population decline by 2100 ...

And the emperor is not alone: More than half of the world's 19 penguin species are in danger of extinction because krill, the keystone of the Antarctic marine food chain, has declined by as much 80 ...

And the emperor is not alone: More than half of the world's 19 penguin species are in danger of extinction because krill, the keystone of the Antarctic marine food chain, has declined by as much 80 ...