World Science: 'Oldest' beads found; Earth hottest in 400 years
* Oldest known beads reported found:
The finding may change scientists' views of how
human culture emerged, researchers claim.
* Earth hottest in 400 years, report says:
A report drafted by request of U.S. Congress paints
a stark picture of global warming.
* Plant has sex with itself:
Many plants can fertilize themselves, but biologists
in China say they've found one that takes things a
* Arrests lead to "origins" of Western painting:
Authorities say a newfound, ancient tomb highlights
the need to protect Italy's vulnerable heritage.
* SCIENCE IN IMAGES:
See homepage www.world-science.net
(1) Crystal warp: A fluid known as a liquid crystal
forms psychedelic patterns when it is quickly
cooled. Some physicists have proposed analogies
between this process and the structure of the
(2) "New century of thirst" foreseen for world's
mountains: a scrollable chart shows how global
warming could change mountains throughout the
world by melting their snow.