Animals
This Spider Runs on an 18.5-Hour Day and Shrugs Off Jet Lag Instantly
animalsThe trashline orb weaver spider operates on a natural circadian rhythm of just 18.5 hours — the shortest ever recorded in the animal kingdom. While most…
Cats Purr Without Their Brains Telling Them To
animalsScientists long assumed cats actively contracted their laryngeal muscles around 30 times per second to produce a purr — a feat requiring constant brain input.…