Penicillin Allergy: Can It Be Outgrown or Not
Reader asks if penicillin allergy from a rash at 17 can fade. Experts say skin reactions are common and not reliable proof of allergy, but true anaphylaxis is life threatening and avoids penicillin. Skin tests help but are not perfect. some patients can tolerate penicillin later with precautions.
Ant slaves found among honeypot ants in Arizona
Harvard biologist Bert Holldobler reports studies show at least one honeypot ant species in Arizona enslaves its own kind. The finding highlights complex social behavior in ant colonies and raises questions about inter and intra species interactions within desert ecosystems.
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