In December 2025, Russian scientists published an analysis of a 67-million-year-old dinosaur fossil that was found in the Gobi Desert in 1979. The researchers examining Manipulonyx reshetovi suggested that the species specialized in egg eating, using its stubby digits and long claws to grasp and puncture eggs. A UC Davis researcher is questioning that narrative.

In a new paper appearing in the Proceedings of the National Academy of Sciences, Vermeij and his research colleague Tracy Thomson catalogued the features of various mollusks in the fossil record and found that early mollusks evolved a unique physical trait once every 2 million years. That frequency began declining roughly 444 million years ago to about one new feature every 9 million years.