A new study finds that warming temperatures are causing Antarctic penguins to breed earlier, threatening some species with extinction by century's end.

Penguins won't lay their eggs any old time of year. They carefully synchronize breeding time with the seasons to give the ...

Dozens of colonies of three species show the same trend, which could produce unclear ecological consequences Every year, ...

There are many types of penguins, a family of flightless aquatic birds that live primarily in the Southern Hemisphere. Read ...

Rising temperatures disrupt breeding cycles of Antarctic penguins ...

A new decade-long study tracked 37 penguin colonies and found that the birds are breeding earlier. The shift marks one way ...