Close-Up of Sea Urchin Larva (IMAGE)

Smithsonian Tropical Research Institute

Close-Up of Sea Urchin Larva

Caption

Developing sea urchin larvae are vulnerable not just to predation and the ebb and flow of tides but also to shifts in temperature -- they may die before they can metamorphose if the water heats up just a couple degrees above normal.

Credit

Michael J. Boyle

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