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OK ... this is just "What The" weird

  1. Jul 3, 2017 #1

    davenn

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  2. jcsd
  3. Jul 3, 2017 #2

    Borek

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    Staff: Mentor

  4. Jul 3, 2017 #3

    davenn

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  5. Jul 3, 2017 #4

    fresh_42

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    This is the widely unknown anchor worm (ancora navalis). It is a close relative of the more famous naval shipworm. Other than its brother, which usually lives from wooden bodies of ships, and which is by the a way very delicious food in north eastern Brasil, the anchor shipworm is specialized to anchor chains, which might be equally dangerous to the safety of a ship, for it can cause the anchor to drop off at any time of the journey. The anchor shipworm cannot be eaten, due to his iron based diet. However there are indigenous people, who use it for a kind of tea for pregnant women.
     
  6. Jul 3, 2017 #5
    I renamed it the Hammerhead Worm!

    edit: I just read the wiki lol
     
  7. Jul 22, 2017 #6
    When I was a kid in grade school, our teacher brought in a two headed snake her son bred. It was cool as heck.
     
  8. Jul 22, 2017 #7

    phinds

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    Indeed.
     
  9. Jul 22, 2017 #8

    BillTre

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    While working in zebrafish labs for many years, it was not uncommon to find embryos (among the hundreds of thousands we looked at) with various extents of head doubling. They don't usually survive too long after embryogenesis.
    The body plan of zebrafish (and all vertebrates develops from the head (first) to the tail (last). Frequently perturbations of development can cause development to start in two neighboring places (in Xenopus frogs, this can be done by rolling the developing embryo in a certain way at a certain time in development), forming two heads, and then merge together further down the body axis, resulting in a single body with two heads.

    Here are some pictures of doubled zebrafish heads as well as some other vertebrates.
     
    Last edited: Jul 22, 2017
  10. Jul 22, 2017 #9

    strangerep

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    This is why we have laws against incest. ?:)
     
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