Most of the penguins seemed to chat with others while they were in the sea, away from their breeding colonies.

baby penguins learning to cliff dive. That all changed recently when Nat Geo photographer Bertie Gregory became the first-ever person to capture this behavior on film. Break out the Kleenex for ...

Now a new study in Marine Ecology Progress Series is investigating links between penguins’ diving efficiency, oxygen storage and aerobic capacities, pre-breeding foraging, and breeding statuses.

Finally a hand grabs mine and hauls me into the air. Today’s dive is over—but it’s only one of 32. Emperor penguins head for the open ocean in search of food. The brownish patches above them ...