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Offshore Peru, during the Eocene (~56-34 million years ago), showing two archaeocetes (ancient whales): Ocucajea picklingi and Supayacetus muizon.
Article

New Archaeocetes from Peru Are the Oldest Fossil Whales from South America

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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!
Article

The Design of a Beautiful Weapon

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An illustration of multispecies communities of dugongs from India, Mexico and Florida
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The Discovery of Multispecies Communities of Seacows

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The ribbon worm seen here, Ramphogordius sanguineus, is known to regenerate after losing a part of its body.
Article

Ribbon Worm Redux

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Nick Pyenson points to a skull and skeleton of a fossil whale.
Article

Excavating a "toothed" baleen whale from Vancouver Island

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Caribbean reef sharks swim over a coral reef in the Bahamas.
Article

Swimming With Sharks

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A tiny larval (baby) starfish.
Article

The Invisible Loss: The Impacts of Oil You Do Not See

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These zooplankton collected on a research cruise include a jellyfish, a lanternfish, a snipe eel, two large orange shrimp, a fuzzy pyrosome (which is bioluminescent), and several smaller animals.
Article

One Fish, Two Fish: Estimating Undiscovered Species

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An adult and juvenile killer whale frolic in the water.
Article

Menopausal Moms: A Mammal Mystery

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Smithsonian scientists race the tide the excavate an ancient whale fossil entombed in rock
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Fossil Whale Found, Excavated, Jacketed, and Returned to STRI!

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