Model by Tyler Keillor
Paul Sereno, who authored a study of these newly discovered creatures, says that he looked something like a “nimble two-legged porcupine.” I want one!
Illustration by Paul Sereno and Carol Abraczinskas.
Drawing by Todd Marshall.
- World leaders have agreed to a "cessation of hostilities" in Syria and expanded humanitarian aid, U.S. Secretary of State John Kerry said.