"However, using AI, the researchers were able to identify a second type of roar, which they've called the 'intermediary roar'. Speaking to the Daily Mail, Jonathan Growcott, lead author of the study, explained: 'The full-throated roar is loud, complex and arcs in pitch. 'The intermediary roar differs by being a flatter sound with less variation. 'The intermediary roar will also always follow the full-throated roars.'"
"Once these bouts had been recorded, they were fed through an AI tool. This confirmed their suspicions - beyond the full-throated roars, moans and grunts, lions also produce an intermediary roar. 'Both roars are found within the roaring bout so it's not the case that one roar is used in one situation and the other another,' Mr Growcott explained to the Daily Mail."
African lions produce two distinct roar types: a full-throated roar and an intermediary roar. The full-throated roar is loud, complex, and arcs in pitch and can carry for miles. The intermediary roar is flatter, with less variation, and consistently follows full-throated roars within a roaring bout. Roaring bouts also include moans and grunts. Camera traps across 64 stations in Tanzania's Nyerere National Park recorded bouts that were analyzed with AI, revealing the intermediary roar. Roaring bouts function to signal location to pride members and to advertise territorial boundaries to non-friendly lions.
Read at Mail Online
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