Heavier Dino Arms Led Evolution to Birds

Many dinosaurs, like T. rex, had scrawny arms, but paleontologists have discovered that as dinosaurs gradually evolved bigger arms, they began to stand and move more like birds. Posture varies among today’s birds, with larger species like ostriches tending to have straighter legs to more economically support their own weight

Numerous dinosaurs, like T. rex, had tiny arms, but paleontologists have came across that as dinosaurs progressively evolved bigger arms, they began to stand and move more like birds. Profile varies among today’s birds, with larger species like ostriches tending to have straighter legs to more economically support their own weight

 

 

 

 

Resources:

http://news.discovery.com/animals/dinosaurs/key-step-in-dinosaur-to-bird-evolution-found-130424.htm

Comments are closed.