Penguins are notoriously shy around humans - the proximity stresses them out. When researchers in the Antarctic approached the birds to read data from chips planted under the penguins' skin, the birds' heart rate rose.
So the scientists had a brainwave: Send a Trojan horse, er, bird, into a colony of emperor penguins.
The robo-chick with a camera hidden in its downy feathers was so convincing that it got close enough to real penguins to collect data from the chips under their skin. Some penguins even sang to the fake chick.
This cam-in-chick's-clothing seems so assimilated into the colony that at one point, fellow chicks huddled with their new buddy against the cold. Check it out here.