Down in the frozen beaches of Antarctica, penguins face harsh realities of extreme temperatures, predators, and finding food. But there is still space left over for a little romance. While diamonds might be a little hard to come by, penguin proposals do happen; it just takes the perfect pebble. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

Gentoo penguins in particular are known to build their nests out of pebbles. The males will choose a nest site and begin building to try and attract a female. If she likes what she sees, the pair will couple up and keep building the nest together. Once the nest is finished, it may be as tall as 20 centimeters (8 inches) and up to 25 centimeters (10 inches) wide.

The males are also known to scoo

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