Search results for Bear

Ecology 3 hours ago

Indigenous co-management essential for protecting, restoring Bears Ears region

Indigenous people have lived in the Bears Ears region of southeastern Utah for millennia. Ancestral Pueblos built elaborate houses, check dams, agricultural terraces and other modifications of the landscape, leaving ecological ...

Materials Science 12 hours ago

Mechanics of the infinitely small: NanoGear, towards a molecular gear

Gears and mechanical transmissions are at home in the Emilia-Romagna region, the Motor Valley of northern Italy. A team of researchers from the University of Bologna and the Institute for Organic Synthesis and Photoreactivity ...

Plants & Animals 19 hours ago

Did Earth's early rise in oxygen support the evolution of multicellular life—or suppress it?

Scientists have long thought that there was a direct connection between the rise in atmospheric oxygen, which started with the Great Oxygenation Event 2.5 billion years ago, and the rise of large, complex multicellular organisms.

Space Exploration 19 hours ago

60 years later, is it time to update the Drake equation?

On November 1, 1961, a number of prominent scientists converged on the National Radio Astronomy Observatory in Green Bank, West Virginia, for a three-day conference. A year earlier, this facility had been the site of the ...

Evolution May 14, 2021

Bird species central to seed-dispersal networks have stable evolutionary lineages

A team of researchers at Universidade de São Paulo has found that bird species that have a central position in frugivory networks tend to belong to more stable lineages over macroevolutionary time scales. In their paper ...

Environment May 14, 2021

Few realistic scenarios left to limit global warming to 1.5°C

Of the over 400 climate scenarios assessed in the 1.5°C report by the Intergovernmental Panel on Climate Change (IPCC), only around 50 scenarios avoid significantly overshooting 1.5°C. Of those only around 20 make realistic ...

General Physics May 13, 2021

New evidence for electron's dual nature found in a quantum spin liquid

A new discovery led by Princeton University could upend our understanding of how electrons behave under extreme conditions in quantum materials. The finding provides experimental evidence that this familiar building block ...

Paleontology & Fossils May 13, 2021

Fossilized tracks show earliest known evidence of mammals at the seashore

Today, the rocks of the Hanna Formation in south-central Wyoming are hundreds of miles away from the nearest ocean. But around 58 million years ago, Wyoming was oceanfront property, with large hippo-like mammals traipsing ...

Plants & Animals May 13, 2021

Songbird neurons for advanced cognition mirror the physiology of mammalian counterparts

University of Massachusetts Amherst neuroscientists examining genetically identified neurons in a songbird's forebrain discovered a remarkable landscape of physiology, auditory coding and network roles that mirrored those ...

Astrobiology May 13, 2021

Scientists find molecular patterns that may help identify extraterrestrial life

Scientists have begun the search for extraterrestrial life in the solar system in earnest, but such life may be subtly or profoundly different from Earth life, and methods based on detecting particular molecules as biosignatures ...

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