PUERTO JIMÉNEZ, Costa Rica — The endangered Geoffrey’s spider monkeys that dangle high in the rainforest canopy are elusive and hard for scientists to track. So biologist Jenna Lawson hid 350 audio ...
The endangered Geoffrey’s spider monkeys that dangle high in the rainforest canopy are elusive and hard for scientists to track. So biologist Jenna Lawson hid 350 audio monitors in trees across Costa ...
Researchers found that New World monkeys can produce extreme yodeling-like sounds by rapidly switching between their vocal folds (for low tones) and specialized vocal membranes (for high tones), ...
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