BBC Earth HD Michael's tackles a 700-year old stick-fighting marital art, witnesses divine illumination at a magnificent monastery, and discovers a chocolate cake with global ambitions. 2026-03-31 Episode one of Sue Perkins' Lost In Thailand opens in magnificent Northern Thailand where Sue explores the breath-taking beauty of the Thai Highlands. 2026-03-31 Lion numbers continue to grow, but there's not enough food to go around; a lioness mum risks her life to feed her five cubs; Xudum's newborn leopard cubs face a deadly threat. 2026-03-31 Discover how trees can extend their lives by 'walking' across the land and planting new roots, how they can 'learn' from trauma, and how a decaying tree has the miraculous ability to nurture new life. 2026-03-31 Ryan journeys deep into Peru along an ancient and remote footpath, where massive snow-capped mountains collide with lush tropical rain forests. The famous Salkantay Trek connects the city of Mollepata with Machu Picchu and passes Mount Salkantay, an outstanding glacier-capped summit. 2026-03-31 Episode one of Sue Perkins' Lost In Thailand opens in magnificent Northern Thailand where Sue explores the breath-taking beauty of the Thai Highlands. 2026-03-31 Michael's tackles a 700-year old stick-fighting marital art, witnesses divine illumination at a magnificent monastery, and discovers a chocolate cake with global ambitions. 2026-03-31