Japanese people are a mixture of three separate ancestral groups

A new study shows that the current Japanese population is derived from 3 ancestral groups, one of which brought Denisovan DNA to the party.
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Cyborg microchip valve driven by earthworm muscle

This earthworm muscle-controlled biological microelectromechanical system (bio‐MEMS) could lead the way to next-generation medical implants.
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Clean and green: a moss that removes lead (Pb) from water

Scientists show that the moss Funaria hygrometrica can remove harmful lead from water when in the protonema stage of development.

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Electric rays to help us map the ocean floor

Electric rays and sting rays could map the ocean floor through their natural behavior, helping us find resources and collect data on other ocean life.
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Hippocampal memory isn’t all about place cells

Scientists have found evidence that hippocampal memories of experience are not stored in place cells.

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Brainless memory makes the spinal cord smarter than previously thought

The spinal cord learns how to direct limb muscles to avoid aversive sensations and recalls the memories using separate neural circuitry. Oh, and without a brain!
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Palaeospondylus: mystery of vertebrate evolution solved

Micro-CT scans using synchrotron radiation X-rays reveal Palaeospondylus morphology, finally allowing its placement on the evolutionary tree.
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Next stop: clinical hair regeneration

A new recipe for continuous cyclical hair regeneration in mice. This means that the hair will continue to fall out and regrow like normal hair.
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Organic nitrogen in soil helps crop growth

Scientists used a multi-omics analysis to show that soil solarization helps crops grow because it increases organic nitrogen in the soil.
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Chromosome copying errors pinpointed in developing embryos

The DNA duplication process changes during embryogenesis and chromosome copying errors increase during the transition.
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Eco-friendly method yields more hydrogen storage, more ammonia

Eco-friendly way to double the amount of hydrogen stored in perovskite powder and more ammonia production.
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Something smells fishy: categorizing odors in the brain

Calcium imaging and mathematical model explain how categories and mixtures of odors are represented in the fly brain and consistent across individual flies.
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New lab-grown retinal sheets almost ready for clinical trials

A new retinal transplant technique works by preventing bipolar cells from maturing in lab-grown retinal sheets.
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Talking science Illustration with Misaki Ouchida

Whether it’s bird anatomy or science cartoons, Masaki Ouchida can do it all. She spoke with us about her career in science illustration, from the US to Japan.
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Diazoxide pills for Alzheimer’s disease?

Drug therapy with with diazoxide relieved symptoms of Alzheimer’s disease in the brains of mice and improved memory.
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Artificial gravity protects the immune system of mice in space

Mice who experienced artificial gravity on the ISS suffered less damage to their immune system (thymus) than weightless mice did.
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