Post ice-age extinctions of large mammals linked to humans, not climate change
Math explains history: Simulation accurately captures the evolution of ancient complex societies
The question of how human societies evolve from small groups to the huge, anonymous and complex societies of today has been answered mathematically, accurately matching the historical record on the emergence ...
New low-temperature chemical reaction explained
In all the centuries that humans have studied chemical reactions, just 36 basic types of reactions have been found. Now, thanks to the work of researchers at MIT and the University of Minnesota, a 37th type ...
Economists find in large groups, money facilitates cooperation
New evidence that cosmic impact caused Younger Dryas extinctions
Researchers perform DNA computation in living cells
(Phys.org) —Chemists from North Carolina State University have performed a DNA-based logic-gate operation within a human cell. The research may pave the way to more complicated computations in live cells, ...
Study shows cultural flow may be slower than genetic divergence
Scientists discover 600 million-year-old origins of vision
By studying the hydra, a member of an ancient group of sea creatures that is still flourishing, scientists at UC Santa Barbara have made a discovery in understanding the origins of human vision. The finding ...
Zebra finches are sensitive to emotional cues in human speech
A study in Proceedings of the Royal Society B shows that zebra finches can pick up on the features in human language that express emphasis and emotion.
Horsetail spores found able to 'walk' and 'jump' (w/ Video)
Study suggests humans, apes and monkeys all expect something in return for generosity
Dolphins keep lifelong social memories, longest in a non-human species
Dolphins can recognize their old tank mates' whistles after being separated for more than 20 years—the longest social memory ever recorded for a non-human species.
Chemists find new compounds to curb staph infection
(Phys.org) —In an age when microbial pathogens are growing increasingly resistant to the conventional antibiotics used to tamp down infection, a team of Wisconsin scientists has synthesized a potent new ...
Greenhouse gas level highest in two million years, NOAA reports (Update 2)
Worldwide levels of the greenhouse gas that plays the biggest role in global warming have reached their highest level in almost 2 million years—an amount never before encountered by humans, U.S. scientists ...