Sand tiger shark embryos attack eachother in womb |
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ghandikush
MMA Sensei
Career record: 84-51
Season: 0-0 (#-)
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Ovoviviparous shark pups depend on yolk for nutrition, and when an embryo has expended its own yolk sac, it turns to the eggs around it. Some species practice intrauterine cannibalism, or eating the other fertilized or unfertilized eggs in the womb.
The best-known intrauterine cannibal is the sand tiger shark. Although the sand tiger shark has two uteri and produces many eggs, each litter yields just two pups -- one from each uterus.
Sand Tiger Shark "intrauterine cannibalism"
Last edited 9/20/12 5:24PM by cowcatcher
Edit note/reason: n/a
2 total post edits
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Post #1 9/20/12 5:21:25PM
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Steady MODdin'
Career record: 1016-583
Season: 17-7 (#771)
Location: Milwaukee
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I've seen video of this before, and it's pretty difficult to watch. I actually had a chance to dive with a few of these in the water and as menacing as they looked, they were extremely docile, unlike the reef sharks which didn't freak me out nearly as much based on looks/size alone.
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Post #2 9/20/12 5:28:51PM
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Slight Reach Advantage
Career record: 428-228
Season: 19-5 (#282)
Location: Ronda Rousey's Guard
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o·vo·vi·vip·a·rous
[oh-voh-vahy-vip-er-uhs]
adjective Zoology .
producing eggs that are hatched within the body, so that the young are born alive but without placental attachment, as certain reptiles or fishes.
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Post #3 9/20/12 5:31:19PM
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Steady MODdin'
Career record: 1016-583
Season: 17-7 (#771)
Location: Milwaukee
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Here's a vid of embryonic cannibalism.
Warning: It's not easy to fap to.
Yum Yum
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Post #4 9/20/12 5:57:58PM
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ghandikush
MMA Sensei
Career record: 84-51
Season: 0-0 (#-)
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Posted by cowcatcher
Here's a vid of embryonic cannibalism.
Warning: It's not easy to fap to.
Yum Yum
tasteless........ nah!
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Post #5 9/20/12 6:03:36PM
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MODular Approach
Career record: 1012-567
Season: 19-5 (#178)
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I could really go for some Salisbury Steak right about now.
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Post #6 9/20/12 6:19:20PM
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infestructure
MMA Sensei
Career record: 269-174
Season: 19-5 (#118)
Location: New Zealand
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Posted by cowcatcher
Here's a vid of embryonic cannibalism.
Warning: It's not easy to fap to.
Yum Yum
It's so cute! 
Here's another vid of the embryo killing its siblings in the womb
Sharks are awesome, the most efficient predator and unchanged for millenia.
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Post #7 9/20/12 6:44:35PM
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