Tag Archive for 'Body mass'

Torvosaurus gurneyi. Image credit: © Sergey Krasovskiy.

Why Were There No Tiny Non-Avian Dinosaurs? Mammals May Have Been to Blame

Aug 10, 2026 by Enrico de Lazaro

Dinosaurs evolved into some of the largest animals ever to walk the Earth, but a new mathematical model suggests that early mammals may have crowded them...

The study sheds new light on the link between sleep deprivation and obesity. Image credit: Sweet Briar College.

Losing Even 80 Minutes of Sleep a Night Linked to Weight Gain

Jul 15, 2026 by News Staff

New research from Columbia University found that adults who cut their sleep by about 80 minutes for six weeks packed on a pound (0.45 kg) and moved less...

A Homo heidelbergensis, a Neanderthal and a Cro-Magnon. Image credit: SINC / José Antonio Peñas.

New Study Challenges Long-Held Idea that Our Ancestors Simply Got Bigger Over Time

Jun 22, 2026 by Enrico de Lazaro

For decades, paleoanthropologists assumed that hominins — the lineage leading to modern humans — gradually grew larger over millions of years....