Natural History Museum of Los Angeles County

CT-scan-based skull restoration and life reconstruction of the toothed stem bird Ichthyornis dispar, a primitive seabird that prospered about 85 million years ago along the warm, shallow inland sea that once split North America, is shown in this image released on May 2, 2018. Credit: Michael Hanson and Bhart-Anjan S. Bhullar/Handout via Reuters

Skull of Smallest-Known Bird Embedded in 99-Million-Year-Old Amber