The Indri lemur of Madagascar, an enchanting species acclaimed for its unique sense of rhythm, is teetering on the brink of extinction. These arboreal primates, known locally as babakoto, are the only other mammals besides humans that have demonstrated a capacity for categorical rhythm, a musicality that has captivated scientists and conservationists alike. https://youtu.be/IGTLZXKHGPo?si=GlV9cJ8M2mqXeDcQ At…