AI Discovers Secret Lion Roar Never Heard by Humans Before – Breakthrough for Conservation
AI Discovers a Secret Lion Roar That Humans Have Never Heard Before For centuries, the mighty roar of the African lion has been one of the most iconic sounds of the wilderness. But in 2025, artificial intelligence has revealed something extraordinary: lions have been producing a powerful low-frequency vocalisation — a true “secret roar” — that is almost inaudible to the human ear yet can travel up to 10–12 kilometres across the savanna. The Groundbreaking Discovery A research team from the University of Oxford’s WildCRU (Wildlife Conservation Research Unit) and the Max Planck Institute of Animal Behavior, in collaboration with the African Lion & Environmental Research Trust, deployed over 3,000 hours of high-sensitivity acoustic recordings across Tanzania’s Serengeti and Ruaha National Parks. Traditional analysis found nothing unusual. However, when the team applied cutting-edge deep-learning neural networks trained on thousands of known lion vocalisations, the AI fla...