Legendary cave explorer Stephen Bishop opened the world's eyes to the incredible natural wonders inside Mammoth Cave. Don't miss a new episode of #UndergroundMarvels tonight at 9p on Science Channel and streaming now on discovery . links.discoveryplus.com/undergroundmarvels | Science Channel

First-Ever Lab-Created Woolly Mammoth Calf Revealed in Breakthrough Footage From Genetic Research Facility San Francisco, California – November 22, 2025 In a moment that looks like science fiction come to life, researchers unveiled the world’s first successfully engineered woolly mammoth calf — a tiny, shaggy newborn standing inside a climate-controlled enclosure, blinking curiously at the camera with straw clinging to its damp fur. The astonishing footage, captured inside a state-of-the-art bio