The last ice age began roughly 120,000 years ago and ended about 11,500 years ago, but plenty of signs of this last period of ice domination still exist all over Earth. The Midwestern United States remains flattened by the last ice age’s towering glaciers, Many new apex predators have replaced woolly mammoths and saber-toothed tigers—and
WhatsApp announced in a blog post on Wednesday that it’s rolling out a new suite of parental controls to prevent teens from seeing content their parents may not want them to access. The tools let parents choose who can see an underage user’s profile photo or invite those users to new groups. Parents can choose
Heart transplants are limited by donor availability.Credit: Vsevolod Zviryk/Science Photo Library What happens to organs when they are transplanted? Hearts from young donors age rapidly in the bodies of older recipients, and older hearts are rejuvenated inside young people, according to a study1. The findings, posted on the preprint server bioRxiv and not yet peer
Earlier this year, education researcher Lixiang Yan realized that students could outsource all of their work for his university course to artificial intelligence. In praise of human teachers: universities must resist outsourcing everything to AI Yan, who teaches at Tsinghua University in Beijing, China, was using an agentic AI called Codex to set up an
Starting Wednesday, Discord, the community messaging platform, will roll out age verification measures to all users. The rollout comes after the company initially delayed its age verification plans in February due to backlash from users concerned that biometric scans and ID checks could jeopardize their privacy. Those concerns weren’t unfounded; last year, a third-party vendor
Thanks to some powerful lasers, a fleet of ancient ships hidden in plain sight for over 40 years has resurfaced inside a Bronze Age temple in Cyprus. However, it’s understandable why archaeologists overlooked them for decades. As researchers explain in a recent study published in the International Journal of Nautical Archaeology, high-resolution laser scans revealed
