Penguins are way harder to figure out than humans

Surveillance system identifies penguins as they waddle to the beach

BBC

Biometrics picks up the penguins

The problem of keeping track of thousands of near-identical African penguins may have been solved.

heads up: this is a pretty old post, it may be outdated.

The BBC reports a very cool new technology that allows scientists to track penguins based on their biometrics.

I certainly can't tell one penguin from another, and if software can do that, think of the implications. Imagine a computer that knows, and can automatically keyword photos based on who's in them. Just tell the computer once, who someone is, and you're good to go.