Resurgence of Bird Flu – Avian Influenza Virus – Raises Concern With Experts
With recent outbreaks identified in Canada and the United States, H5N1 – a highly pathogenic avian influenza virus (HPAIv) strain – is quickly becoming a…
American Association for the Advancement of Science
Analysis of SARS-CoV-2 Reinfection Risk Shows Omicron COVID Variant Evades Immunity From Prior Infection
Analysis of SARS-CoV-2 reinfection risk in South Africa reveals differences among variants of concern. The Omicron variant of SARS-CoV-2 evades immunity from prior infection, an…
Variations in Earth’s Magnetic Inclination Are “Stop Signs” for Migrating Songbird
Informing how birds know when and where to stop migrating, researchers using nearly a century’s worth of data report that the Eurasian reed warbler –…
Autonomously Swimming Biohybrid Fish Made From Human Cardiac Cells Reveals Insights Into Heart Physiology
An autonomously swimming biohybrid fish, designed with a focus on two key regulatory features of the human heart, has revealed the importance of feedback mechanisms…
Highly Virulent and Transmissible Variant of HIV Discovered in the Netherlands
A highly virulent variant of HIV-1 has been circulating in the Netherlands for the past few decades, researchers report. According to the new study, a…
At Last: New Synthetic Tooth Enamel Is Harder and Stronger Than the Real Thing
Delivering what has been so challenging to produce, researchers present an engineered analog of tooth enamel – an ideal model for designing biomimetic materials –…
New Study Shows Third Dose of Pfizer-BioNTech COVID Vaccine May Protect Against Omicron
A new study that evaluated the effectiveness of the BNT162b2 (Pfizer-BioNTech) vaccine against the Omicron variant indicates that three doses could offer a sufficient level…
U.S. Military Evidence That Epstein-Barr Virus Causes Multiple Sclerosis
A new analysis of data from U.S. military recruits suggests multiple sclerosis (MS) – a disease considered of unknown etiology – is a complication of…
Planetary Evolution: Composition of Earth-Like Exoplanet Interiors Linked to Composition of Host Stars
The internal compositions of rocky exoplanets correlate with that of their host stars, according to a new study, but not 1:1. This suggests that planet…
A New Mineral – From Deep Inside the Earth – Discovered in a Diamond
For the first time, a high-pressure calcium silicate perovskite (CaSiO3) has been identified as a naturally occurring mineral from Earth’s lower mantle, researchers report. The…
Hydraulic Jump Drives Stratospheric Hydration Above Intense Supercell Thunderstorms
Scientists have provided new insights into how intense thunderstorms drive the injection of water vapor from the troposphere — the atmospheric layer closest to Earth’s…
Juno Spacecraft Reveals Jupiter’s Great Red Spot Extends Deeper Than Expected Into Giant Planet
Jupiter’s iconic Great Red Spot (GRS) – a 16,000-kilometer-wide tempest that has been churning in the planet’s atmosphere for several centuries – extends deeper into…
Intense Ivory Poaching Leads to Rapid Evolution of Tuskless African Elephants
Intense ivory poaching during the Mozambican Civil War (1977-1992) resulted in the rapid evolution of tusklessness in female African elephants amid a precipitous population decline,…
Fossil Footprints Reveal Humans Inhabited North America Over 21,000 Years Ago
Newly discovered fossil human footprints embedded in an ancient lakebed show that humans inhabited North America during the Last Glacial Maximum (LGM), occupying the region…
New Insights Into How Metabolism Changes Over the Human Lifespan
Metabolism and total energy expenditure change throughout our lives, and now a new study documents a series of distinct, related changes in unprecedented detail. The…
Neuroscience Experiment Shows How Dopamine Drives Hallucination-Like Perception in Mice
An increase of dopamine in the brain’s striatum triggers auditory hallucination-like experiences in mice, revealing a possible causal role for dopamine-dependent neurological circuits in symptoms…
COVID-19 Has Revealed Critical Knowledge Gaps on the Transmission of Respiratory Viruses
The COVID-19 pandemic has revealed critical knowledge gaps and assumptions concerning how respiratory viruses spread between hosts. Traditionally thought to be spread mainly through large…
Isotopes Reveal the Incredible Lifetime Journey of an Arctic Woolly Mammoth
From the isotopes inside a 1.7-meter-long tusk, researchers recreated the life history of one Arctic woolly mammoth that lived more than 17,000 years ago, offering…
