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Quantum compass may steer nighttime flight of birds

An international team of biologists, chemists, and physicists has produced new evidence supporting the hypothesis that migratory birds can navigate at night using the varying quantum state of electrons in their retinas.

Swiss team learns how mistranslation can affect evolutionary fitness, lessen predictability

Sometimes increased evolutionary fitness can be achieved when mistakes are made in the commonly assumed mutational pathways of adaptive DNA mutation. How this occurs is important in understanding what influences evolution and how predictable evolution is.

New design gives screen displays bright color images even in sunlight

Viewing high-quality images with optimal colors, even when looking at a tablet or smart phone in direct sunlight, may be possible when new research results are commercialized.

Study: Graphic cigarette warning labels are more effective with young adult smokers

A small study of young adults, using functional magnetic resonance imaging (fMRI), found that graphic warning labels affected their motivation to quit smoking more than text-only warning message labels.

U.S. scientific team learns only a few bacteria affect most carbon soil recycling

Twice as much carbon is stored in the soil as it is in vegetation on land, but how it is accumulated and processed by microorganisms is not known. This is an important element for modeling carbon in climate science and soil fertility management.

New field of physical bioenergetics studies how cells budget energy

Physical bioenergetics, a new field of study, examines how much energy cells are using and how they apportion that energy.

Researchers detail how biological hijackers can change the aging process

The aging process of humans and other organisms can be hijacked by another species, like a virus, for the reproductive or survival advantage of the hijacker, while distorting the age of the host organism, according to a new study.

A proposal for a cross-disciplinary approach to epidemics and invasion biology

An international team of scientists has proposed a cross-disciplinary approach to biosecurity that may benefit both invasion biologists, who study the spread of non-native species, and epidemiologists, who study human infectious pathogens.

Probing the evolution of surface-associated multicellularity

Surface-associated multicellular organisms are found throughout the biosphere and include common land plants, corals, lichens, bacterial biofilms and slime molds. Yet despite their prevalence, little is known about how they evolved.

Rutgers researchers uncover how stony corals form strong skeletons

Corals are colonies of tiny, genetically identical animals known as polyps that form their characteristic skeletons by combining the mineral calcium carbonate with fibers of living matter, in a process known as biomineralization. But how the skeletons of stony corals arrange scores of different proteins in the process of biomineralization has been largely unknown.

3.67 million-year-old fossil shows how early human ancestors used their arms

A nearly complete fossil skeleton 3.67 million years old provides new insight into how the hominin ancestors of man used their arms.

Why the dogma of strict maternal inheritance of mtDNA should be corrected

The current prevailing view in biological science is that the DNA of mitochondria, the structures that convert nutrients into cellular energy, is passed on only through maternal inheritance. How this idea came to be, and why it's wrong, is the subject of a review paper by physical anthropologist, Jeffrey H. Schwartz.

Scientists reconstruct genome of 45,000-year-old human skull from Czech Republic

An international team of researchers has reconstructed the oldest modern human genome from a human skull found in the modern Czech Republic that is thought to be at least 45,000 years old.

Horizontal gene transfer considered the most 'parsimonious explanation' for a nearly identical gene in a plant and insect

The sweet potato whitefly, Bemisia tabaci, is a costly menace to agricultural crops worldwide, and now researchers have found a possible reason for the whitefly's success: It has found a way to protect itself from the usual plant toxin defense.

Archaea DNA forms into floppy 'slinkies'

Archaea are one of three domains of life, along with bacteria and the more complex eukaryotes. Now, new research has confirmed that archaea microbes package their DNA in tight coils that bend like a slinky, which may be the precursor for the more elaborate DNA system of eukaryotes.

Constructive Neutral Evolution: An answer for seemingly 'unnecessary' complexity

Constructive Neutral Evolution (CNE) is a useful concept in the study of evolution that should be better known among molecular and evolutionary biologists, state the authors of a review article on the subject in the Journal of Molecular Evolution, Feb. 19.

Maine laboratory study: Strange microbe from deep in the Earth hasn't evolved in millions of years

An exotic microbe, Candidatus Desulforudis audaxviator (CDA), found very deep in the earth on three continents has developed almost identically in each location, with minimal evolution over millions of years.

New design tool 'IRENE' increases efficiency of cell conversions

Scientists have developed a new, more efficient method for converting one type of human cell into another type of human cell for use in disease modeling, cell transplants, and gene therapies.

New light-emitting tattoos have a variety of applications

Researchers have demonstrated an easy way to transfer ultrathin organic light-emitting diodes (OLEDs) to temporary tattoo paper that can be applied to any kind of surface. The result is a light-emitting tattoo.

Italian study: COVID-19 health care workers at high risk for post-traumatic stress

A group of Italian medical researchers has issued a "call for action" to the medical community to protect frontline healthcare workers from heavy psychological stress in dealing with COVID-19 patients.