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Each cell of a developing nematode worm embryo is catalogued at the molecular level in a new paper out in Science . In this visualization of the dataset, each dot represents a single cell, its color represents the age of the embryo it came from (orange=early, green=mid, blue/red=late), and the dots are arranged so that cells with similar transcriptomes are near each other. Visualized this way, the data form various thin “trajectories” that correspond to tissues and individual cell types. (Image: Cole Trapnell)

Scientists decoded embryo development at the molecular level

Scientists characterize how every cell changes during animal embryonic development.
In the Seattle lab, the team cultured 36 species of marine microbes and then tested their ability to produce sulfonates. Each phytoplankton type has its own unique set of pigments that absorb and reflect different wavelengths of light, creating the range of colors in the test tubes.Bryndan Durham/University of Washington

Study tracks sulfur-based metabolism in the open ocean

How photosynthetic microbes and ocean bacteria use sulfur, a plentiful marine nutrient?
Residence change during early pregnancy linked to heightened premature birth risk

Residence change during early pregnancy linked to heightened premature birth risk

Residence change during the first three months of pregnancy is linked to a heightened risk of premature birth and low birth weight, as well as a slightly higher risk of a smaller-than-expected-size baby.
Corals and kelp.Soyoka Muko/Nagasaki University

Coral reefs shifting away from the equator

In spite of broad atmosphere driven reductions of coral cover on tropical reefs, little consideration has been paid to the likelihood that changes in...
Fish swim along the Great Barrier Reef in Australia. A new study shows that tiny fishes, which are rarely monitored or studied, provide critical fuel for coral reef ecosystems.Tane Sinclair-Taylor

Tiny fishes fuel life on coral reefs

How coral reefs survive as oases of life in low-productivity oceans has puzzled scientists for centuries. The answer may lie in internal nutrient cycling...
People who are visually impaired rely on other senses to interpret their surroundings. A pair of studies from the University of Washington shows how the brains of blind people adapt to process information.

Brains of blind people adapt to sharpen sense of hearing, study

Blind people often have a more nuanced sense of hearing, especially when it comes to musical abilities and tracking moving objects in space. But...
Exposure to chemical in Roundup increases risk for cancer

Exposure to chemical in Roundup increases risk for cancer

Glyphosate is a broad-spectrum systemic herbicide and crop desiccant. It is an organophosphorus compound, specifically a phosphonate, which acts by inhibiting the plant enzyme...
Illustration “The midnight sun over Early Triassic Antarctica” by Adrienne Stroup. Along the banks of a river, three archosaur inhabitants of the dense Voltzia conifer forest cross paths: Antarctanax shackletoni sneaks up on an early titanopetran insect, Prolacerta lazes on a log, and an enigmatic large archosaur pursues two unsuspecting dicynodonts, Lystrosaurus maccaigi.Adrienne Stroup/Field Museum.

Iguana-sized dinosaur cousin discovered in Antarctica

Almost 250 million years ago, Antarctica is believed to be covered in forests and rivers, and the temperature rarely dipped below freezing. It also had diverse...