Bees and birds cool themselves with air flow and water
Animals deploy cooling strategies in heat. Birds pant to shed heat while bees use social ventilation at hive entrances and water-collecting workers to dampen brood cells, aided by drip water and floating matter to prevent drownings.
MENTIONED IN THIS ARTICLE
TNS
John Marzluff
Wildlife Sciences
University of Washington
Seattle
Gerrit Wyn
Tom Seeley
Department of Neurobiology and Behavior
Cornell University
Seeley
Journal of Experimental Biology
Tim Lawrence
Washington State University Extension
Island County
Lawrence
Difference Between Active and Passive Investing
The Efficient Market Hypothesis from Eugene Fama argues markets price all information, making outperformance unlikely. Alpha measures portfolio managers ability to beat the market while beta tracks stock volatility relative to a benchmark. A zero alpha means market results. beta around one aligns with market moves.
MENTIONED IN THIS ARTICLE
Eugene Fama
University of Chicago
Fama
Comparing Active and Passive Funds and Their Pitfalls
Greg Roberts explains how active managers differ from passive index funds. He notes Fama's theory and Vanguard's 1975 index fund, advantages of index funds, and Morningstar findings that passive funds often outperform over the long run.
MENTIONED IN THIS ARTICLE
Morningstar
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