Birds, Bats And Insects Hold Secrets For Aerospace Engineers:
Natural flyers like birds, bats and insects outperform man-made aircraft in aerobatics and efficiency. University of Michigan engineers are studying these animals as a step toward designing flapping-wing planes with wingspans smaller than a deck of playing cards.
Intersex Fish Linked To Population And Agriculture In Potomac River Watershed:
For several years, scientists have been working to determine why so many male smallmouth bass in the Potomac River basin have immature female egg cells in their testes - a form of intersex. They are closer to finding an answer.
Quick Feather Test Determines Sex Of Chicks:
Scientists in Germany are reporting development of test that can answer one of the most frustrating questions in the animal kingdom: Is that bird a boy or a girl? Their study is a potential boon to poultry farmers and bird breeders.
Neural Basis Of 'Number Sense' In Young Infants:
Behavioral experiments indicate that infants aged 4½ months or older possess an early "number sense" that allows them to detect changes in the number of objects. However, the neural basis of this ability was previously unknown.
Nurses As 'Soft Targets' Of Drug Company Promotion:
Nursing education fails to prepare graduates to deal with the pharmaceutical industry's promotional tactics, and many nurses appear to accept promotional materials uncritically, according to an analysis of the nursing literature recently published.