An Edible Education

When was the last time you thought about your lettuce—I mean, really thought about it? Where did you buy it? How was it packaged and transported? Where was it grown? Who harvested it? How many other heads of lettuce just like it weren’t lucky enough to end up in your kitchen, and where did they
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Truth In Science

The world of the unseen, unlearned, and unknown has forever entranced human minds. Imagine the delight of the first creature to wield fire on the end of a stick, suddenly able to illuminate features in the darkness on command. Scientists enjoy a similar feeling when, for a brief moment at the microscope or analyzing fresh
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Hot streak: how rising temperatures are skewing some animals’ sex ratios

In the 1993 film Jurassic Park, characters create a theme park populated with cloned dinosaurs that purportedly will not reproduce because they are all female. When the skeptical chaos theorist Dr. Malcolm voices concerns, the park’s lead geneticist Dr. Wu explains, “We control their chromosomes. It’s really not that difficult.” Of course, controlling sex determination—the
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