Katharine Gammon
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What’s Your City’s Hoofprint?
A new study measures the impact meat eating has on the planet, one city at a time
How Heat Hurts Teamwork
Even small increases in heat can make teamwork harder—especially when groups are mixed.
Sleep Has No Magic Number
People who sleep according to their culture’s norms are healthier overall
The Surprising History of Scientific Ballooning in 11 Missions
It started with farm animals—now it's revealing secrets of the cosmos
What Megalodons Tell Us About Gigantism
The biggest predator ever to have lived was a skinny beast
