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Humans

From the September 18, 1937, issue

Wiping out insects not a good idea, a novel compound for preventing deadly blood clots, and firecrackers making fireflies flash faster.

Earth

Toxipedia

Ever wonder whether some chemical in a bathroom cleanser, herbicidal spray, or paint is toxic? Just how poisonous is that chemical described in last week’s Science News? Toxicologists are developing one-stop shopping for such information at Toxipedia. Like Wikipedia, it allows the public—experts, advocates, or policymakers—to post information. Unlike Wikipedia, there is a rating system […]

Health & Medicine

The Breast Solution

Reversing earlier advice, health authorities now say that babies of HIV-positive mothers in poor countries have a better chance of avoiding infection if they feed only on breast milk that's not supplemented with other food.