Add BrightSurf on Google Email

Science News for August 5, 1998


Beaver, Architects To The Birds

Researchers investigated beaver pond succession and its impact on waterfowl productivity, finding that ponds in the old active stage created the most valuable habitat for waterfowl broods. Beaver ponds also support a wide range of bird species, including marsh and song birds.

Lack Of Data For New Heart Drugs Is Causing Concern

The safety of new high blood pressure drugs is being questioned due to insufficient data. Centrally acting antihypertensives have been found to target brainstem receptors that orchestrate blood vessel dilation, but concerns remain over their long-term effectiveness in reducing heart attacks, strokes, and deaths.

SourceNew Scientist·JournalThe New Scientist·DateAug 5, 1998