What happens to marine life when oxygen is scarce?

1 week 1 day ago
In September 2017, Woods Hole Oceanographic Institution postdoctoral scholar Maggie Johnson was conducting an experiment with a colleague in Bocas del Toro off the Caribbean coast of Panama. After sitting on a quiet, warm open ocean, they snorkeled down to find a peculiar layer of murky, foul-smelling water about 10 feet below the surface, with brittle stars and sea urchins, which are usually in hiding, perching on the tops of coral.

Plant root–associated bacteria preferentially colonize their native host-plant roots

1 week 1 day ago
An international team of researchers from the Max Planck Institute for Plant Breeding Research and the University of Aarhus in Denmark have discovered that bacteria from the plant microbiota are adapted to their host species. In a newly published study, they show how root-associated bacteria have a competitive advantage when colonizing their native host, which allows them to invade an already established microbiota.

Juicy past of favorite Okinawan fruit revealed

1 week 1 day ago
Citrus fruits from the mandarin family are popular throughout the world for their tasty and healthy characteristics. Within Japan, the tiny shiikuwasha and the ornamental tachibana are of special cultural and historical importance. However, the origin of these two varieties, and other East Asian citrus, was something of a mystery until now.

How South Korea is bringing back bears in a country of 52 million people

1 week 1 day ago
The return of wolves to Yellowstone National Park in 1995 popularized the idea of reintroducing long-lost species to modern habitats. While scientists are still trying to fully understand the ecological consequences, the wolf's reintroduction likely benefited other species, illustrating how conservation can not just slow biodiversity loss, but even reverse it.

Sharks, lies, and videotape: Scientists document many problems with Shark Week, marine biology's biggest stage

1 week 4 days ago
Shark Week is many things. First and foremost, it's a week of shark-themed documentary programming on the Discovery Channel. Now in its 33rd year, it's the longest-running cable event in history. It's the biggest audience that marine biologists and ocean conservationists get, attracting millions of viewers who might otherwise not ever think about sharks at all. It's a stage that has launched careers of shark scientists and inspired many others to pursue jobs as ocean scientists.

New 'atlas' charts how antibodies attack spike protein variants

1 week 4 days ago
As the SARS-CoV-2 virus that causes COVID-19 continues to evolve, immunologists and infectious diseases experts are eager to know whether new variants are resistant to the human antibodies that recognized initial versions of the virus. Vaccines against COVID-19, which were developed based on the chemistry and genetic code of this initial virus, may confer less protection if the antibodies they help people produce do not fend off new viral strains. Now, researchers from Brigham and Women's Hospital and collaborators have created an "atlas" that charts how 152 different antibodies attack a major piece of the SARS-CoV-2 machinery, the spike protein, as it has evolved since 2020. Their study, published in Cell, highlights antibodies that are able to neutralize the newer strains, while identifying regions of the spike protein that have become more resistant to attack.
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