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

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Discussion Overview

The discussion revolves around unusual biological phenomena, particularly focusing on unique organisms such as the Hammerhead Worm and the anchor worm, as well as instances of developmental anomalies in zebrafish and other vertebrates. The scope includes informal observations, anecdotal experiences, and references to scientific literature.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants express fascination with the Hammerhead Worm, with one participant humorously renaming it.
  • Another participant introduces the anchor worm, describing its relationship to the naval shipworm and its unique dietary habits.
  • A participant shares a personal anecdote about a two-headed snake, linking it to broader discussions about developmental anomalies in vertebrates.
  • Further elaboration on zebrafish development is provided, noting that head doubling can occur due to developmental perturbations, with references to specific experimental conditions in Xenopus frogs.
  • Participants share a mix of personal experiences and scientific observations, contributing to a sense of wonder and curiosity about biological oddities.

Areas of Agreement / Disagreement

Participants generally share a sense of intrigue regarding the discussed organisms and phenomena, but there is no consensus on the implications or significance of these observations. The discussion remains exploratory and informal.

Contextual Notes

Some claims rely on anecdotal evidence and personal experiences, which may not be universally applicable. The discussion includes references to scientific concepts without detailed explanations or validations.

Who May Find This Useful

Readers interested in unusual biological phenomena, developmental biology, or personal anecdotes related to science may find this discussion engaging.

davenn
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far out !

 
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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.
 
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I renamed it the Hammerhead Worm!

edit: I just read the wiki lol
 
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When I was a kid in grade school, our teacher brought in a two headed snake her son bred. It was cool as heck.
 
davenn said:
far out !
Indeed.
 
Kevin McHugh said:
When I was a kid in grade school, our teacher brought in a two headed snake her son bred. It was cool as heck.

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.
 
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Kevin McHugh said:
When I was a kid in grade school, our teacher brought in a two headed snake her son bred.
This is why we have laws against incest. ?:)
 
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