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save the sea otters

30 Signatures Goal: 100

Sea otters are a keystone species. Without its keystone species, an entire ecosystem can fall apart. Wherever sea otters have disappeared, kelp forests have suffered. Urchins eat kelp, and sea otters eat sea urchins. In places where sea otters have disappeared, sea urchins will eat the kelp forest until it\'s gone. They leave behind desolate areas called urchin barrens. Researchers found that when sea otters arrive in an area from which they have been absent, they begin snacking on urchins. Soon the kelp forest begins to grow back. Algae species that had been missing make an appearance, along with fish that like to hide out in the canopy.

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marine biology class

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30

Signatures

  • 3 months ago
    Blair grippaudo United States
    3 months ago
  • 11 months ago
    Amanda Robledo United States
    11 months ago
  • 4 years ago
    Stephanie Iasenza Canada
    4 years ago
  • 4 years ago
    Vickie C Canada
    4 years ago
  • 4 years ago
    david thibault Canada
    4 years ago
  • 4 years ago
    Tania Canada
    4 years ago
  • 4 years ago
    Jeana Wei China
    4 years ago
  • 8 years ago
    Seung-Joon Lee United States
    8 years ago
  • 8 years ago
    Nicole Trudell United States
    8 years ago
  • 9 years ago
    Felicia G Canada
    9 years ago
  • 9 years ago
    Didier BELAIR France
    9 years ago
  • 9 years ago
    will rinster United States
    9 years ago
  • 9 years ago
    will rinster United States
    9 years ago
  • 9 years ago
    kiki smith United States
    9 years ago
  • 9 years ago
    Rachel DeMeyer United States
    9 years ago
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