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The ultimate goal of the Timetree of Life initiative is to chart the timescale of life -- to discover when each species and all their ancestors originated, all the way back to the origin of life some four billion years ago
Web site offers species origin information Jun 10, 2009
This discovery is surprising because no previous theories of how the frogs arrived had predicted a single origin for Caribbean terrestrial frogs and because groups of close relatives rarely dominate the fauna of an entire continent or major geographic region
Caribbean frogs came from single species Jun 07, 2007
The discovery that the wood blocks and metal plates used for printmaking deteriorate at a clock-like rate means we can now use the prints as a
New method found for dating old art, books Jun 21, 2006
If we don't provide a moist environment when we collect them, they rapidly shrivel right up and die by evaporation from the proportionally large area of their surface
Researchers find world's smallest lizard Dec 03, 2001
We need desperately to find out what's there in order to protect it
Researchers find world's smallest lizard Dec 03, 2001