The duck-billed dinosaur Parasaurolophus is best known for the tube that grows out of its head, and the well-preserved skull offers more clues about the crest's evolution.
Bonnie Burton, CNET
Mon, 01/25/2021 - 5:46pm
The duck-billed dinosaur Parasaurolophus is best known for the tube that grows out of its head, and the well-preserved skull offers more clues about the crest's evolution.