T. Rex skeleton at the Royal Ontario Museum, Toronto (Image: Keith Schengili-Roberts, Wikimedia Commons)
See also: T. rex had an amazing sense of smell.
A BIG pair of bird-like lungs may have helped the largest dinosaurs achieve their astonishing size.
The biggest plant-eating sauropods stretched 40 metres from nose to tail, and weighed up to an estimated 100 tonnes, more than 10 times as much as the largest living elephants. How they grew to this tremendous size has remained a mystery, particularly because their small heads, and necks up to 12 metres long, would have limited how efficiently they could…
