Just because we haven’t found dinosaur bones near the equator doesn’t mean they don’t exist — just that we haven’t looked in the right places.
A study modeling the extinct beasts’ evolution, published in Current Biology, points to the earliest dinosaurs establishing themselves near the Earth’s center, then spreading out to other parts of the globe. So far, the oldest known dinosaur fossils — dating back about 230 million years — hail from farther south, including Brazil, Argentina, and Zimbabwe.
