Add BrightSurf on Google Email

Science News Archive January 2003 - Page 8


Page 8 of 8

Wetlands clean selenium from agricultural runoff

Researchers found that man-made wetlands in California's San Joaquin Valley can remove up to 69.2% of selenium from agricultural drainage water, converting it into non-toxic dimethyl selenide. The unique ecosystem of the wetlands acts as a bio-geo-chemical filter, trapping selenium in sediment and utilizing plant roots to metabolize it.

SourceUniversity of California - Berkeley·JournalEnvironmental Science & Technology·DateJan 2, 2003

Evidence for orangutan culture

Researchers discover evidence of culturally transmitted behaviors in orangutans, dating back 14 million years. The findings push back the origins of cultural transmission in apes, suggesting a stronger link to human culture.

SourceDuke University·JournalScience·DateJan 2, 2003