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The Missing Microbial Link in the Ocean Food Web

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This male dancing fiddler crab (Uca terpsichores) has built a sand “hood” at the entrance to his burrow, which he hopes will attract females to his humble abode—as if that big beautiful claw of his weren't enough!
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The Design of a Beautiful Weapon

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A screenshot from the video showing a fiddler crab with a large claw.
Video

Claws Out: Fiddler Crabs Do Battle

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A female (top left) and male Photerus annecohenae. Note that females are larger than males (sexual dimorphism) and that males have bigger eyes.
Article

You Light Up My World!

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A zoomed-in image of the crown-of-thorns sea star.
Article

A Plague of Sea Stars

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Male northern elephant seals face off for the best beach territory for mating season.
Photo

Elephant Seals Tussle for Territory

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A male mudflat fiddler crab (Uca rapax) waves its huge claw to impress females and threaten competitors.
Photo

The Mudflat Fiddler Crab

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