The evolution of penguins from their flying seabird ancestors into the flightless denizens of marine environments from frigid Antarctica to the tropical Galapagos Islands is among the wonders of ...

This ancient penguin species fills an essential gap in understanding penguin wing evolution. Its shoulder joints resemble those of today’s penguins, while its elbow joints are similar to those ...

Scientists say the find shows that key features of the plumage were present quite early on in penguin evolution. The team writes in Science journal that the penguin's feathers were brown and grey ...

This unique adaptation has left many wondering: why don’t penguins fly? The answer lies in their evolution, their environment ...

Why does the Arctic have polar bears and Antarctica penguins? These patterns impressed Darwin deeply. To him, they argued that species arose in single centers by descent with modification from ...