Latest science news in Biology & Nature

Trilobites: It’s a Lefty! Welcome to the World’s First Crispr Snail Baby

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Most snails are righties. Now scientists have found genes that make some of them born with shells coiling the other way.

Topological control of cytokine receptor signaling induces differential effects in hematopoiesis

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Although tunable signaling by G protein–coupled receptors can be exploited through medicinal chemistry, a comparable pharmacological approach has been lacking for the modulation of signaling through dimeric receptors, such as...

Germline selection shapes human mitochondrial DNA diversity

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Approximately 2.4% of the human mitochondrial DNA (mtDNA) genome exhibits common homoplasmic genetic variation. We analyzed 12,975 whole-genome sequences to show that 45.1% of individuals from 1526 mother–offspring pairs harbor...

Protein crystallization promotes type 2 immunity and is reversible by antibody treatment

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Although spontaneous protein crystallization is a rare event in vivo, Charcot-Leyden crystals (CLCs) consisting of galectin-10 (Gal10) protein are frequently observed in eosinophilic diseases, such as asthma. We found that...

Bacterial pseudokinase catalyzes protein polyglutamylation to inhibit the SidE-family ubiquitin ligases

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Enzymes with a protein kinase fold transfer phosphate from adenosine 5'-triphosphate (ATP) to substrates in a process known as phosphorylation. Here, we show that the Legionella meta-effector SidJ adopts a...

Role of AcrAB-TolC multidrug efflux pump in drug-resistance acquisition by plasmid transfer

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Drug-resistance dissemination by horizontal gene transfer remains poorly understood at the cellular scale. Using live-cell microscopy, we reveal the dynamics of resistance acquisition by transfer of the Escherichia coli fertility...

Brainstem nucleus incertus controls contextual memory formation

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Hippocampal pyramidal cells encode memory engrams, which guide adaptive behavior. Selection of engram-forming cells is regulated by somatostatin-positive dendrite-targeting interneurons, which inhibit pyramidal cells that are not required for memory...

NASA's OCO-3 Measures How Plants Grow - and Glow

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OCO-3's measurements of a dim glow from plants during photosynthesis may shine some new light on this critical process.

Glimpsing a world beyond human extinction

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Writer and explorer Robert MacFarlane explores the "underland" beneath our feet.

Biodiversity heroes: The teenagers saving Madagascar's wildlife

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This quiet, teen revolution could pave the way to Madagascar's sustainable future.

Artificial life form given 'synthetic DNA'

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UK scientists have created an artificial version of the stomach bug E. coli that is based on an entirely synthetic form of DNA.

Spain alarmed by French bear's attacks on sheep

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France released two brown bears in the Pyrenees - but one has now killed eight sheep in Spain.

'Sabotaged' tanker in Gulf of Oman leaked oil

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A satellite spotted an oil slick trailing from a tanker mysteriously attacked off the UAE on 12 May.

Bug hunt: Volunteers needed to spot insect's 'spittle'

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Scientists want thousands of volunteers to help record sightings of "spittle" and spittlebugs across the UK.

Last male Sumatran rhino in Malaysia dies

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The future of the critically endangered Sumatran rhino has been struck a blow, with the death of Malaysia's last male.

DFO rolls out new plan to bring back 'wild' Atlantic salmon stocks

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Canada's Department of Fisheries and Oceans has rolled out a new three-year plan to conserve and bring back wild Atlantic salmon.

Conservation groups sound alarm over another sea lice outbreak in Clayoquot Sound

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Conservation groups that monitor Clayoquot Sound are sounding the alarm for the second spring in a row about high levels of a parasite that can harm juvenile wild salmon.

Winter workout gear: 9 ways to embrace the cold

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No need to hibernate this time of year. Here's some fun, innovative gear to help you get out, get moving and stay fit this winter. 1. Riding high The ski...

Pop-up outdoor roller skating rinks are coming to L.A. this summer

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Swimming in El Segundo, spinning in Manhattan Beach, roller-skating in Valencia … and a newly opened spot in Venice for when you’ve worked out enough. Here are a few ideas...

A forest "glow" reveals awakening from hibernation

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Gross Primary Production (GPP) in forests tells scientists how much CO2 these systems are breathing in. Evergreen trees retain their green needles year round, preventing scientists from detecting GPP on...

Light at night is harmful for amphibians, new research shows

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Light at night might be convenient for humans, but it's having a detrimental effect on amphibian populations, according to new research from Binghamton University, State University of New York.

In some genetic cases of microcephaly, stem cells fail to launch

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In a very severe, genetic form of microcephaly, stem cells in the brain fail to divide, according to a new Columbia University Medical Center study that may provide important clues...

Purest yet liver-like cells generated from induced pluripotent stem cells

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This image shows induced pluripotent stem cells expressing a characteristic cell surface protein called SSEA4 (green). A research team including developmental biologist Stephen A. Duncan, D. Phil., SmartStateTM Chair...

Study finds shark fins & meat contain high levels of neurotoxins linked to Alzheimer's disease

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Cyanobacterial neurotoxin β-N-methylamino-L-alanine (BMAA) and Mercury are detected in sharks from the Atlantic and Pacific Oceans. In a new study, University of Miami (UM) scientists found high concentrations of...

More tomatoes, faster: Accelerating tomato engineering

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A researcher transfers tomato plantlets from a plate of regeneration medium. Tomatoes are already an ideal model species for plant research, but scientists at the Boyce Thompson Institute (BTI)...

New genus of bacteria found living inside hydraulic fracturing wells

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Ohio State University researchers and their colleagues have identified a new genus of bacteria living inside hydraulic fracturing wells. Researchers analyzing the genomes of microorganisms living in shale oil...

Brain circuit that drives sleep-wake states, sleep-preparation behavior is identified

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Stanford University School of Medicine scientists have identified a brain circuit that's indispensable to the sleep-wake cycle. This same circuit is also a key component of the reward system, an...

Giraffes more speciose than expected

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Scientists from the Senckenberg and the Giraffe Conservation Foundation have analysed the genetic relationships of all major populations of giraffe in the wild. The large study on the genetic makeup...