Learn how dogs, cats, and toddlers were tested for spontaneous helping behavior — and why evolution may explain why most dogs tried to help while cats rarely did.
Learn how brown recluse spiders in Florida are localized, reluctant to bite, and far less likely to cause severe necrotic wounds than commonly believed.
Forever chemicals are widespread and difficult to remove. A new sunlight-powered method could help detect and break down these pollutants that threaten human health and the environment.
Learn how the answer behind why female caribou have antlers lies in how shed antlers provide a nutritional lifeline to a famous migratory group of Arctic caribous.