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Dreadnoughtus: A New Dinosaur Discovery (Original Post) yuiyoshida Sep 2014 OP
That's REALLY cool. Spitfire of ATJ Sep 2014 #1
Thank you, Yui. Jackpine Radical Sep 2014 #2
Just shooting from the hip here... Old Crow Sep 2014 #3
Kicked and recommended. Uncle Joe Sep 2014 #4
One report said it is not fully grown. alfredo Sep 2014 #5

Jackpine Radical

(45,274 posts)
2. Thank you, Yui.
Mon Sep 8, 2014, 01:54 PM
Sep 2014

What an amazing creature! You really have to wonder what evolutionary forces propelled it toward such gigantism.

Old Crow

(2,212 posts)
3. Just shooting from the hip here...
Mon Sep 8, 2014, 09:20 PM
Sep 2014

... but I'd venture to say that in each generation, the smaller members of the species were getting eaten by carnivores. Since this dino's tail was robustly muscled to be used as a weapon (which means a good amount of the animal's caloric intake was expended in building and maintaining such muscle mass), clearly fending off predators was a significant evolutionary pressure.

Really interesting video.

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