Bitcoin's energy costs, beatboxers invent new sounds, wind farms change lizards, chucking salmon for science, piranha barking, smells and mapping, and heat and humidity.

Quirks and Quarks

Bitcoin mining uses more energy than mining for real gold; Beatboxers have invented whole new ways of making sounds; Wind farms in India are driving a population boom of skinny, fearless lizards; For 20 years, scientists have been chucking fish into the forest. Here's why; Barking piranhas and screeching catfish are the sounds of the Amazon River; Sniffing your way around - our brains are built to navigate by scent; Why does humidity make us feel hotter in the summer and colder in winter?

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