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Emperor Penguins Move Breeding Grounds Due to Diminishing Antarctic Sea Ice
Photo courtesy of Shutterstock
Using satellite images, an international team of scientists tracked the four colonies from 2008 to 2012. In the first three years, the emperor penguins hatched and incubated eggs in their customary fashion—atop the sea ice that freezes during the Antarctic winter and spring. But in 2011 and 2012, sea ice did not form until a month after the breeding season began.
As a result, the emperor penguins—the largest penguin species on Earth—did something never before witnessed by scientists: they climbed up the nearly sheer walls of large, floating ice shelves—huge structures, often hundreds of square miles in extent, that flow from land-based glaciers into the sea.
In the region of the four colonies, the ice shelf walls reach as high as 100 feet, researchers say. The scientists say the altered breeding behavior could demonstrate how ice-dependent emperor penguins may adapt to life in a warming world.
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The First Step in Managing Plastic Waste Is Measuring It – Here’s How We Did It for One Caribbean Country
By Jeff Turrentine
To celebrate the 50th birthday of one of America's most important environmental laws, President Trump has decided to make a mockery out of it.
In 2018, there were about 5 million electric cars on the road globally. It sounds like a large number, but with well over a billion cars worldwide, electric vehicles are still only a small percentage.