Field flowers 34243

Plant evolution: Compact genomes and tiny cells helped flowering plants take over the world

When people consider evolutionary events related to the origin and diversification of new species and groups, they tend to emphasize ...
Evolutionary tradeoffs: How DNA works so living things have a 'competitive advantage' to survive

Evolutionary tradeoffs: How DNA works so living things have a ‘competitive advantage’ to survive

Evolution is a game of trade-offs. Every trait an organism inherits may have benefits and drawbacks; what matters to natural ...
Neanderthal population estimate increases tenfold

Neanderthal population estimate increases tenfold

Some gene-based estimates put the Neanderthals’ effective population at a measly 1,000; others claim they hovered at a few thousand ...
Physicist Nigel Goldenfeld: Life started with physics, not biology

Physicist Nigel Goldenfeld: Life started with physics, not biology

[Editor's note: The following is part of an interview with Nigel Goldenfeld, director of the NASA Astrobiology Institute for Universal Biology ...
Bear love affair: Grizzly and polar--Interbreeding neighboring species played key role in evolution

Bear love affair: Grizzly and polar–Interbreeding neighboring species played key role in evolution

In 2006, a hunter shot what he thought was a polar bear in the Northwest Territories of Canada. Closer examination, ...
Could we artificially create mutations that might aid cells in battling cancer?

Could we artificially create mutations that might aid cells in battling cancer?

The scientific challenge has not just been to demonstrate convincingly that harsh environments cause nonrandom mutations. It has also been ...