Photographer Paul Goldstein spent time with a colony of Emperor penguins while guiding in the Antarctic this month.

WASHINGTON (AP) — The population of emperor penguins in one part of Antarctica appears to be declining faster than previously thought, according to a new analysis of satellite imagery released Tuesday ...

Antarctica's emperor penguin population may be decreasing faster than thought, and they are expected to be extinct by the end of the century, according to the British Antarctic Survey.

WASHINGTON — The population of emperor penguins in one part of Antarctica appears to be declining faster than previously thought, according to a new analysis of satellite imagery released June 10. The ...