Paleontology. Bone study shows T. rex bulked up with massive growth spurt.
Erik
E
Stokstad
D000375:Aging; D000818:Animals; D001835:Body Weight; D001842:Bone and Bones / Q000033:anatomy & histology; D025061:Dinosaurs / Q000033:anatomy & histology / Q000254:growth & development*; D010163:Paleontology