
Tiny Plants That Once Ruled the Seas
Around 250 million years ago animals in the seas began to diversify with gusto. Remarkably, the evolution of minute plants known as phytoplankton probably powered that dramatic explosion...
Around 250 million years ago animals in the seas began to diversify with gusto. Remarkably, the evolution of minute plants known as phytoplankton probably powered that dramatic explosion...
These insects can sense higher pitches than any other known species
Concentrations of greenhouse gases in the atmosphere have reached this level for the first time in millions of years. What does this portend?
But speedier human-caused global warming may prove a challenge
New evidence shows that a controversial fossil may be the oldest human ancestor
The mysterious bias of life on Earth toward molecules that skew one way and not the other could be due to how light shines in star- and planet-forming clouds, researchers say
Volunteer listeners expressed preferences for voice qualities that ordinarily correlate with specific body dimensions. Sophie Bushwick reports
Help make information about natural history collections available via the Internet
On the diamond jubilee of the double helix, we should admit that we don't fully understand how evolution works at the molecular level
When salt-rich water leaks out of sea ice, it sinks into the sea and can occasionally create an eerie finger of ice called a brinicle. New research explains how these strange fingers of ice form and how the salty water within sea ice could have been a prime environment in which life may have evolved...
DNA analyses find that early Homo sapiens mated with other human species and hint that such interbreeding played a key role in the triumph of our kind
At least 27 human species have walked the Earth, but only our lineage survived. Our ancestors may have crossed a cerebral Rubicon that led to babies being born “early”
Consumer genetic-testing companies report how much of one's DNA comes from archaic human species, but what do the results really mean?
The genes of this fish, sometimes called a living fossil, reveal much about the origins of tetrapods, the evolutionary line that gave rise to amphibians, birds and mammals
Circadian rhythms may influence the timing of cell division, which could inform the timing of some therapies. Christopher Intagliata reports
The purple sea urchin may be able to evolve to cope with ocean acidification, but that does not mean other species will be able to mimic the trick
Books and recommendations from Scientific American
A new study reveals diminishing returns in the attractiveness to females of larger-than-average genitalia
Conservation biologist Kent Redford talks about the issues facing the intersection of synthetic biology and conservation biology and a conference that starts April 9th called "How will synthetic biology and conservation shape the future of nature?"...
Conservation biologist Kent Redford talks about the issues facing the intersection of synthetic biology and conservation biology and a conference that starts April 9th called "How will synthetic biology and conservation shape the future of nature?"...
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