As fascinating and awe-inspiring as fossils are, the ancient bones tell us only so much about how an animal actually lived.
Take T. rex, for example: How did the animal find food, through sharp sight, great hearing or a keen sense of smell? The nose knows, say authors of a new paper on the iconic dinosaur’s olfactory ability.
In most modern animals, including birds, the size of the brain’s olfactory bulb — which processes smell — correlates with how good of a sniffer it is and, by extension, the ecological niche it adapted to occupy.
