Wetlands
These havens of biodiversity are often endangered because they can be hard to identify. Understanding their variable characteristics can lead to more successful conservation efforts
Features
Breaking Intractability
Problems that would otherwise be impossible to solve can now be computed, as long as one settles for what happens on the average
Animal Sexuality
Animals have evolved a range of mechanisms to determine whether an individual takes on masculine or feminine traits. Cross-species comparisons offer some surprising insights into the nature of sexuality
World Linguistic Diversity
The ancestor of each language was taken to its current territory by pioneers, farmers, traders or a conquering elite. Multidisciplinary studies are clarifying their respective roles
The First Data Networks
The optical telegraph is almost forgotten. Two centuries ago it moved messages over hundreds of kilometers in a few minutes
A War not Won
Despite dramatic scientific gains, cancer remains an undaunted killer
Departments
Keyhole View of a Genius
The Search for Strange Matter
The Toxins of Cyanobacteria
- Letters
Letters to the Editors, January 1994
- Recommended
Book Reviews--Crossing in Style
- 50, 100 & 150 Years Ago
50 and 100 Years Ago: Over-Logging and Cold Period in Europe
- Mathematical Recreation
Knots, Links and Videotape
- Science and the Citizen
Joe Btfsplk
Getting a New Rise out of Superconductors
EQ, Phone Home
A Dark Matter
Biowarfare Wars
Something to Chew on
Chiller Thriller
Dioxin Indictment
- Departments
Lies, Damned Lies and Models
The Tragedy of Enclosure
- Technology and Business
RoboTuna
Survival Tactics
Material Advantage
Optical Tomography
Gene Readers
