Uncategorized
- Health & Medicine
Jarring Result: Extreme biking can hurt men’s fertility
Men who maintain grueling mountain-bicycling programs are apt to have lower sperm counts than nonbikers are.
- Anthropology
Script Delivery: New World writing takes disputed turn
Researchers announced, to considerable controversy, that inscriptions found on artifacts at an Olmec site in southeastern Mexico represented the earliest known writing system in the Americas.
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Contrary to your article, animal cells do not possess “cell walls,” as suggested by “proteases are usually much smaller and don’t inhabit cell walls.” Plants have cell walls; animal cells are bound by a single lipid bilayer membrane. David Winialski Tallahassee, Fla.
