Plants & Animals

How many T. rexes were there? Billions.

How many Tyrannosaurus rexes roamed North America during the Cretaceous period?

Environment

Study uses plankton genomes as global biosensors of ocean ecosystem stress

By analyzing gains and losses in the genes of phytoplankton samples collected in all major ocean regions, researchers at the University of California, Irvine have created the most nuanced and high-resolution map yet to show ...

The whitest paint is here—and it's the coolest. Literally.

In an effort to curb global warming, Purdue University engineers have created the whitest paint yet. Coating buildings with this paint may one day cool them off enough to reduce the need for air conditioning, the researchers ...

Researchers establish the first entanglement-based quantum network

A team of researchers from QuTech in the Netherlands reports realization of the first multi-node quantum network, connecting three quantum processors. In addition, they achieved a proof-of-principle demonstration of key quantum ...

Nuclear DNA from sediments helps unlock ancient human history

The field of ancient DNA has revealed important aspects of human evolutionary past, including relationships with Denisovans and Neandertals. These studies have relied on DNA from bones and teeth, which store DNA and protect ...

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Medical Xpress

Diseases, Conditions, Syndromes
Why women may be better equipped to fight COVID

Tech Xplore

Plastics could see a second life as biodegradable surfactants

Scientists at the Institute for Cooperative Upcycling of Plastics (iCOUP), an Energy Frontier Research Center led by Ames Laboratory, have discovered a chemical process that provides biodegradable, valuable chemicals, which ...

Researchers generate human-monkey chimeric embryos

Investigators in China and the United States have injected human stem cells into primate embryos and were able to grow chimeric embryos for a significant period of time—up to 20 days. The research, despite its ethical concerns, ...

Baked meteorites yield clues to planetary atmospheres

In a novel laboratory investigation of the initial atmospheres of Earth-like rocky planets, researchers at UC Santa Cruz heated pristine meteorite samples in a high-temperature furnace and analyzed the gases released.

Massive fragment screen points way to new SARS-CoV-2 inhibitors

New research published in Science Advances provides a template for how to develop directly acting antivirals with novel modes of action that would combat COVID-19 by suppressing the SARS-CoV-2 viral infection. The study focused ...

Investigating heavy quark physics with the LHCb experiment

A new review published in The European Physical Journal H by Clara Matteuzzi, Research Director at the National Institute for Nuclear Physics (INFN) and former tenured professor at the University of Milan, and her colleagues, ...

Objective analysis of stress in the classroom

Is it the difficulty of a task that determines whether or not students are stressed when working on it? Dr. Nina Minkley, a biologist working in biology didactics at Ruhr-Universität Bochum (RUB), set out to find out the ...

eBird data used to shape eagle management

Millions of people donate billions of dollars' worth of their time to citizen-science projects each year. While these efforts have broadened our understanding of everything from birds to bees to bracken ferns, rarely has ...

It's nearly cicada census time

Cicada researchers, enthusiasts, and citizen scientists have an exciting few months ahead of them. The emergence of the Brood X 17-year periodical cicadas this summer is an opportunity to unite a summertime spectacle with ...

Tracking oxygen in the Sargasso Sea's 18-degree water

Off the eastern coast of the United States in the Sargasso Sea, the Gulf Stream and its associated ocean currents create a thick, homogeneous layer of water that stays around 18°C year-round. Since its discovery in the late ...