A piece from the American Institute of Physics points out that Gentoo penguins are the fastest swimming birds in the ... use the ratio of wing flapping speed to forward speed.

When penguins swim, their white bellies make them ... swimmers and are amazingly fast in the water. The Gentoo penguin's average speed is 22 miles per hour, which is faster than both a brown ...

Lobster krill line up on the seafloor, pincers raised, as if for battle. Gentoo penguins swim at the fastest speed clocked for a bird: 22 miles an hour. They’ll spend the entire day hunting in ...

A penguin chick ... and will be able to swim, become independent and no longer rely on the parents for food." The new chick is part of the EAZA breeding programme for gentoo penguins, of which ...