Strongylocentrotus purpuratus is a species of sea urchin in the family Strongylocentrotidae, which is commonly known as the purple sea urchin or Pacific purple sea urchin. It lives along the eastern e
Urchin
S. purpuratus moves using its tube feet
Oral surface of Strongylocentrotus purpuratus showing Aristotle's lantern, spines, and tube feet.
On a rock
Sea otter
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The sea otter is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. Adult sea otters typically weigh between 14 and 45 kg, making them the heaviest members of the we
Strongylocentrotus purpuratus
…lives along the eastern edge of the Pacific Ocean extending from Ensenada, Mexico, to British Columbia, Canada. After one of its main predators, the sea otter, experienced a population decline, Strongylocentrotus purpuratus became a threat to the health of kelp forests as its own population boomed. The species…
Sea Otter crop
A sea otter's thick fur makes its body appear plumper on land than in the water.
Skull of a sea otter
The hip bone of a sea otter stained purple as a result of ingesting sea urchins.