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Spinosaurus

เผยแพร่:   โดย: MGR Online


There once was a dinosaur, bigger than a T. rex, that swam with the sharks -- and ate them for dinner.
Paul Sereno (L), a paleontoligist and National Geographic Explorer in Residence, alongside Researcher Cristiano Dal Sasso (C) discusses a full-sized skeletal model of a Spinosaurus.
The 20-metric-ton beast boasted a crest on its back, akin to a boats sail, held aloft with spines as tall as an average human.
Its long tail, narrow hips and paddle-shaped feet likely helped the 50-foot-long (15-meter) creature move through the water with ease.
Spinosaurus also had dense bones to help control its buoyancy in water, and a long snout with high-set nostrils that could allow easy breathing while partially submerged.
Spinosaurus might have made nests for its young on land but the front-heavy creature would not have been particularly agile on solid ground.
Taken together, these features strongly suggest that Spinosaurus was the first dinosaur that spent a significant amount of time in the water.
The 2001 movie Jurassic Park III features a scene in which a Spinosaurus attacks a Tyrannosaurus rex and snaps the legendary carnivores neck.
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