Financial

	%Comp	Index
Used one or more financial services
past 12 months (net)	76.5%	120
Financial planner	27.9%	119
Full service broker	29.4%	186
Discount broker	7.7%	213
Online trading	11.9%	122
Other broker service	7.7%	196
Private banker	11.9%	126
Tax Consultant	41.5%	164
Importance of investing in socially responsible companies
Very important	33.3%
Somewhat/very important	81.6%
Average value of investment portfolio	$1,057,000

Source: 2008 Ipsos Mendelsohn Natural History Subscriber Study. Indexes based on 2008 Mendelsohn Affluent Survey

Deciphering the link between nature and nurture

Raindrop pockmarks may provide clue to the density of Earth's atmosphere 2.7 billion years ago when the Sun was 30 percent dimmer than today.

The legacy of "Brian Tinsley's clever wife"

Tourists are only encouraging a dubious Vietnamese tradition.

Hear author Michio Kaku interviewed by Vittorio Maestro, Editor in Chief of Natural History. (MP3, 19 minutes)