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sea urchins

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Bizarre Creature With "All-Body Brain" Challenges What We Know About Evolution of Nervous SystemsPurple sea urchins (Paracentrotus lividus) on a rock by the sea.

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Bizarre Creature With "All-Body Brain" Challenges What We Know About Evolution of Nervous SystemsPurple sea urchins (Paracentrotus lividus) on a rock by the sea.
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Bizarre Creature With "All-Body Brain" Challenges What We Know About Evolution of Nervous Systems

clock-iconNovember 12, 2025
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Pretty In Purple: Why Do Some Otters Have Purple Teeth And Bones? It’s All Down To Their Spiky Dietsthe purple skull of a sea otter that ate a lot of urchins

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Pretty In Purple: Why Do Some Otters Have Purple Teeth And Bones? It’s All Down To Their Spiky Dietsthe purple skull of a sea otter that ate a lot of urchins
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Pretty In Purple: Why Do Some Otters Have Purple Teeth And Bones? It’s All Down To Their Spiky Diets

clock-iconSeptember 12, 2025

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Hard Working Urchins Don’t Deserve Their Bad ReputationPurple sea urchins eating a dead piece of kelp.

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Hard Working Urchins Don’t Deserve Their Bad ReputationPurple sea urchins eating a dead piece of kelp.
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Hard Working Urchins Don’t Deserve Their Bad Reputation

clock-iconNovember 2, 2023
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First Fossil Evidence Of Deep-Sea Invertebrates From 104 Million Years Agoclose up of common heart urchin (also known as a sea potato)on sandy sea bed where it commonly buries itself

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First Fossil Evidence Of Deep-Sea Invertebrates From 104 Million Years Agoclose up of common heart urchin (also known as a sea potato)on sandy sea bed where it commonly buries itself
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First Fossil Evidence Of Deep-Sea Invertebrates From 104 Million Years Ago

clock-iconSeptember 7, 2023
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The Case Of The Mystery Sea Urchin Killer Has Finally Been SolvedSea urchins on the rocky sea floor, photo taken through the surface of the water. One of the urchins has lost most of its spines.

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The Case Of The Mystery Sea Urchin Killer Has Finally Been SolvedSea urchins on the rocky sea floor, photo taken through the surface of the water. One of the urchins has lost most of its spines.
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The Case Of The Mystery Sea Urchin Killer Has Finally Been Solved

clock-iconApril 21, 2023
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What Are Sand Dollars And Why Should You Leave Them On The Beach?A white "sand dollar" on the beach

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What Are Sand Dollars And Why Should You Leave Them On The Beach?A white "sand dollar" on the beach
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What Are Sand Dollars And Why Should You Leave Them On The Beach?

clock-iconJanuary 10, 2023
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As Waters Warm, Coral Reefs Are Appearing In Unexpected Placesarticle image

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As Waters Warm, Coral Reefs Are Appearing In Unexpected Placesarticle image
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As Waters Warm, Coral Reefs Are Appearing In Unexpected Places

clock-iconOctober 1, 2018