• They have a lot more to teach us.

    We've learned a lot with your help. But there's still so much we need to know to protect our wild dolphin neighbors.

    Give to dolphin research at the Cape Lookout Studies Program.

  • Sea Turtel sick and injured from fishing line

    You can stop this.

    Protecting marine wildlife is within your reach.

    When you give to put monofilament recycling bins within reach of conscientious boaters and anglers.

  • Harbor seal in need

    Save lives, reduce suffering, learn more.

    It's a win, win, win – when you support our Marine Mammal Stranding Network.

    Please give generously to the Cape Lookout Studies Program.

  • Cetacean Studies

    Inspire curiosity.

    What does it take to get students interested in science and conservation? Your help.

    Please give generously to support Cetacean Studies and the Bonehenge rearticulation project.

Interesting Brain Mass to Body Mass Percentages

Written by Keith_Rittmaster. Posted in Uncategorized

When the the Gervais’ beaked whale stranded back in February, we were excited to be able to weight the whale on the beach. With subsequent skull dissection in the lab it was learned that this whale’s brain weight, or mass, to body weight, or mass, was approximately 0.25%.    
Below are some comparative values of brain mass to body mass percentages from  other species:


beaked whale – 0.25%

right whale – 0.004% (their testicles are much larger than their brains)
sperm whale – 0.02% (but their brain is the largest on earth)
bottlenose dolphin – 0.96%
human – 2.1%-2.5%
mouse – 2.5%

We may have to rethink this whole ‘intelligence/brain meaning’.
(See February 25th, 2011 blog entry about this whale’s stranding).   



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