At the time, the world was warmer than today. But when the climate cooled, this penguin vanished. We argue the cold wasn't to blame because crested and little penguins in New Zealand weathered the ...

Three million years ago, an extinct relative of today's great penguins—emperors and kings—lived in Aotearoa New Zealand. Subscribe to our newsletter for the latest sci-tech news updates. We know this ...

Here’s how it works. Modern penguins thrive in colder climates, so why did the New Zealand penguin fail to survive? (Image credit: Richard McManus via Getty Images) Three million years ago, an extinct ...