Ants Drove Bizarre Group of Dinosaurs to Rapid Miniaturization

The alvarezsaurids drastically shrank around 100 million years ago…

Reconstructed skeleton of Patagonykus puertai / Kabacchi / Wikimedia Commons

Roughly 100 million years ago, a bizarre group of bird-like dinosaurs, known as alvarezsaurids, began to transform from ostrich-sized predators to animals the size of chickens. According to a recent study published by the University of Bristol…