July 2009

  • Possible Pinta Island Tortoises Hatchlings Soon; Act to Save Sea Turtles

    By sarajean on 7/23/09 8:04pm
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    Amazingly, a 90-year-old, 198-pound giant tortoise—the last of his own kind—may soon be a father. In his pen at the Galapagos Islands, “Lonesome George” was discovered with some very unexpected company on Monday—five unhatched eggs in perfect condition.

    This news is incredibly exciting, as no known Pinta island tortoises have reproduced in decades, and despite much encouragement from his keepers since 1993, George hasn’t expressed an interested in mating—that is, apparently, until now.

    Also amazing is that George is considered to be in his “sexual prime.” Though I knew turtles grew to be very old, even older than humans—anyone who’s seen Finding Nemo knows that, right?—I had no idea that 90 was considered to be a good age for reproduction.

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  • Turtle Shells Finally Explained

    By sarajean on 7/13/09 8:54pm
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    Have you ever wondered just what makes up a turtle shell? I know when I was a kid, I thought it grew right out of its back and around its body, because the turtle shell that my dad found in the woods and gave to me still had a backbone in it, attached.

     It turns out that I was pretty close.

    Japanese scientists at the RIKEN Center for Developmental Biology in Kobe, Japan have discovered that turtle shells are actually made from their own shoulder blades and rib bones. According to the study, published in Science journal, while in the egg, the shell completes a strange but cool folding process that pushes the turtle’s shoulder blades straight into its own ribcage, which makes the ribs grow around them, creating the shell.

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