Tiny, long-armed dinosaur leads to rethink of dinosaur miniaturization

A newly discovered dinosaur, Alnashetri cerropoliciensis, is rewriting the story of dinosaur miniaturization. This tiny, long-armed dinosaur lived about 90 million years ago and weighs only 700 grams.

Researchers found that Alnashetri wasn't an ant-eater as previously thought. Instead, it was a pursuit predator, challenging the idea that size reduction was solely linked to diet and lifestyle.

The discovery opens up new questions about dinosaur evolution. Scientists are now investigating how Alnashetri fits into the broader narrative of Alvarezsaurids and their geographic distribution.