Little Kids Burn So Much Energy, They’re Like a Different Species
Science
Ahana Fernandez trekked through the rainforests of Central America, ears tuned for high-pitched, repetitive chirping and squeaking from greater sac-winged bat pups. Their babbling may shed light on why human babies babble and the origins of speech.
Our planet has seen this before. Its ice has melted. Water levels have risen. Ocean currents have already stopped. The last time this happened was 13,000 years ago.
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