Our brains trick us into seeing images of craters as both concave and convex. Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. Search for: ...

Large-area dinosaur footprints from Late Cretaceous discovered in East China, rarely preserved in concave, convex slabs By Global Times Published: Nov 20, 2022 08:01 PM Updated: Nov 20, 2022 07:59 PM ...