Science Did humans evolve to be active throughout the day and night? Evidence from hunter-gatherers suggests humans aren't diurnal but cathemeral, with bouts of activity at nighttime – a sleep pattern similar to some lemurs August 18, 2026 1 minute read Read More → Post navigation Previous: How Israel’s Financial Chokehold Is Stifling the West Bank EconomyNext: Postbiotic could reduce the risk of brain damage after a concussion Related Stories Science U.S. Cuts Colorado River Water for Arizona, California and Nevada August 21, 2026 Science ‘Off the charts’ El Niño is already the strongest since records began August 21, 2026 Science Greenland meltwater is intensifying European heatwaves August 21, 2026