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New listening methods: Cornell scientists use low-cost microphones and AI to study bird reactions to predator calls across California’s Sierra Nevada. Citizen science surge: Global Big Day mobilizes ...

Radiolab is on a curiosity bender. We ask deep questions and use investigative journalism to get the answers. A given episode might whirl you through science, legal history, and into the home of ...

As of 9:39:05 PM UTC. Market Open. A ratio that indicates liquidity. Higher ratios suggest the asset is more actively traded and easier to buy/sell near its true value. Lower ratios may mean less ...