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Two skulls belonging to extinct marine mammal herbivores used in the new study, both from the Smithsonian’s collections.
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Marine Mammal Herbivore Skulls

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Colorful underwater animals highlighted with a white background.
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Biocubes Promo Image 2

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An albatross soars over the ocean.
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Albatross Soars

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Wandering albatross soars over the ocean
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Wandering albatross

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An arrow-worm from the genus Spadella. Alvariño discovered and classified the species Spadella gaetanoi in 1978.
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Arrow-worm

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A narwhal breaches the surface, its tusk pointed to the sky
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Tusks of Mystery

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Two nurse sharks hover over a baited cage
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Global FinPrint

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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.
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A female and male Photerus annecohenae

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Two killer whales.
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Killer Whales from Above

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The shell of a sea slug
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Spiny Parachutes

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Sylvia Earle on a beach
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Sylvia Earle

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Neighborhood Seafood Market in Rome, Italy
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Neighborhood Seafood Market in Rome

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