Search results for circadian

Plants & Animals Dec 22, 2023

Reindeer sleep while chewing their cud, a strategy that may help them in the summer

Researchers report December 22 in the journal Current Biology that the more time reindeer spend ruminating, the less time they spend in non-rapid eye movement (non-REM) sleep. EEG recordings revealed that reindeer's brainwaves ...

Cell & Microbiology Dec 21, 2023

Examining the relationship between the rate of wound healing, the circadian rhythm and cilium length

Nearly every organism on Earth follows a natural circadian rhythm that is coded by your cell's clock genes, which do exactly as you suspect from the name: regulate your body's rhythm on a 24-hour basis.

Evolution Dec 14, 2023

Neanderthals may have been morning people, says new study

A new research paper finds that genetic material from Neanderthal ancestors may have contributed to the propensity of some people today to be "early risers," the sort of people who are more comfortable getting up and going ...

Molecular & Computational biology Dec 6, 2023

Fruit fly study finds blue light exposure may affect processes related to aging

In a study on fruit flies, daily low-intensity blue light exposure (BLE), similar to that experienced daily by billions of humans in the form of LED lighting and device screens, changed flies at the sub-cellular level, affecting ...

Cell & Microbiology Dec 5, 2023

Circadian stress response provides an insight into metabolic communication via the mitochondrial epigenome

Who needs science fiction when you have the mitochondria? Billions of years ago, early plant and animal cells were infected by protobacteria which sought refuge from the outside world. Over time, these bacteria formed a symbiosis ...

Plants & Animals Dec 4, 2023

Study shows that artificial light is luring birds to cities and sometimes to their deaths

Nearly 1,000 birds were killed Oct. 4–5 when they collided with an illuminated glass building in Chicago. Though mass fatalities of this magnitude are rare, light pollution poses a serious—and growing—threat to migrating ...

Plants & Animals Nov 29, 2023

Agronomists save tomatoes from toxic aluminum with melatonin

RUDN University agronomists and colleagues from China and Iran have helped tomatoes cope with the toxic effect of aluminum in acidic soils with the help of melatonin. This hormone contributes to nitric oxide production, blocking ...

Plants & Animals Nov 16, 2023

Bear genes show circadian rhythms even during hibernation

The internal clocks of grizzly bears appear to keep ticking through hibernation, according to a genetic study. This persistence highlights the strong role of circadian rhythms in the metabolism of many organisms including ...

Plants & Animals Oct 31, 2023

How sunflowers 'see' the sun: Study describes a novel mechanism

Sunflowers famously turn their faces to follow the sun as it crosses the sky. But how do sunflowers "see" the sun to follow it? New work from plant biologists at the University of California, Davis, published Oct. 31 in PLOS ...

Space Exploration Oct 31, 2023

NASA C-130 makes first-ever flight to Antarctica for GUSTO balloon mission

On Oct. 28, 2023, NASA's C-130 Hercules and crew safely touched down at McMurdo Station, Antarctica, after an around-the-globe journey to deliver the agency's Galactic/Extragalactic ULDB Spectroscopic Terahertz Observatory ...

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