Health

Fear of Snakes, Spiders Rooted in Evolution, Study Finds

Publication: National Geographic News   Date: October 4, 2001   View Article

“Aaaaaaaahhhh!!!!!” The mere sight of a snake or spider strikes terror in the hearts of millions of people.

A new study suggests that such fear has been shaped by evolution, stretching back to a time when early mammals had to survive and breed in an environment dominated by reptiles, some of which were deadly.

Despite Prediction, Viagra Hasn’t Stemmed Trade in Threatened Wildlife

Publication: National Geographic News   Date: May 31, 2001   View Article

When the male potency drug Viagra came on the market in 1998, conservationists and animal protection groups were hopeful it would produce an unintended side effect: an end to world demand for animal parts—often from endangered species —used as aphrodisiacs.

In the case of harp seals, which are not endangered, anecdotal evidence has suggested that Viagra may have helped to shrink trade in seal genitals used in traditional medicines to enhance male virility. But conservationists and others caution against overstating the significance of such evidence, saying the link is tenuous.

© 2008-2010 Collected Writings By John Roach