Why some dinosaurs had such long necks

The largest animals to ever walk the Earth were sauropods -- long-necked dinosaurs that could grow the length of three school buses. Their huge size was likely a response to a shift in climate 180 million years ago, new research suggests.

Why some dinosaurs had such long necks
The largest animals to ever walk the Earth were sauropods -- long-necked dinosaurs that could grow the length of three school buses. Their huge size was likely a response to a shift in climate 180 million years ago, new research suggests.