Low genetic diversity in two manatee species off South America
Worldwide, marine megafauna are at risk of extinction due to climate change, habitat loss, pollution, overhunting, population fragmentation, and hybridization with related species in areas disturbed by humans. Genetic studies can help determine the c.....»»
Ancient unicellular organism indicates embryonic development might have existed prior to animals" evolution
Chromosphaera perkinsii is a single-celled species discovered in 2017 in marine sediments around Hawaii. The first signs of its presence on Earth have been dated at over a billion years, well before the appearance of the first animals......»»
Coyotes are thriving despite human and predator pressures, large-scale study finds
Research led by the University of New Hampshire sheds light on how coyotes, North America's most successful predators, are responding to various environmental pressures, including human development, hunting and competition with larger carnivores. Sur.....»»
Biologists discover how plants evolved multiple ways to override genetic instructions
Biologists at Washington University in St. Louis have discovered the origin of a curious duplication that gives plants multiple ways to override instructions that are coded into their DNA. This research could help scientists exploit a plant's existin.....»»
Genetic repair via CRISPR can inadvertently introduce other defects, researchers show
The CRISPR molecular scissors have the potential to revolutionize the treatment of genetic diseases. This is because they can be used to correct specific defective sections of the genome. Unfortunately, however, there is a catch: under certain condit.....»»
Volcanic ash as a source of nutrients: How the Hunga Tonga eruption affected ecosystems in the South Pacific
The eruption of Hunga Tonga-Hunga Ha'apai (HTHH) in January 2022 ejected about 2.9 billion tons of volcanic material into the atmosphere and across the South Pacific. In early 2022, a scientific expedition (GEOTRACES GP21) investigated the impact of.....»»
The frozen carbon of the northern permafrost is on the move—we estimated by how much
Among the most rapidly changing parts of our planet are the coldest landscapes near the top of the globe, just south of the Arctic. This region is warming two to four times faster than the global average......»»
New research reveals how stormy conditions affect albatrosses" ability to feed
Albatrosses are exceptionally mobile and use the wind to travel hundreds of thousands of miles to feed on squid, fish, or other animals found near the water surface in the open ocean. In fact, some larger species of albatrosses are so reliant on the.....»»
Testing thousands of RNA enzymes helps find first "twister ribozyme" in mammals
The "RNA world" hypothesis proposes that the earliest life on Earth may have been based on RNA—a single-stranded molecule similar in many ways to DNA—like some modern viruses. This is because, like DNA, RNA can carry genetic information, but, lik.....»»
New policy aims to introduce bilingual education in South Africa
Language has always been used as a political football in South Africa. This can be traced back to the competing English and Dutch colonizers, from the 17th to the early 20th centuries, each group trying to assert linguistic as well as economic and so.....»»
Study investigates the gendered focus on the Japanese language-learning boom in postcolonial Korea
In the 1960s, Japanese books became immensely popular in South Korea. Interestingly, Korean newspapers often wrote about this trend as if mainly women were interested in learning Japanese......»»
New plant bug species discovered in French Polynesia
Seventeen new species of plant bugs—a group of insects with a strawlike mouth used to feed on plant and animal matter—have been identified on the islands of French Polynesia, and their names honor scientists, actors, and Vice President Kamala Har.....»»
Archaic dolphin could hear high frequency sounds
A team of researchers led by SNSB paleontologist Gertrud Rößner has discovered a new prehistoric dolphin species. Analyses of its inner ear confirm that this dolphin had excellent hearing abilities in the high-frequency range, which is very similar.....»»
Globular cluster Gran 5 hosts two stellar populations, study finds
Using the Gemini-South telescope, astronomers have performed high-resolution near-infrared spectroscopy of stars in a Galactic globular cluster known as Gran 5. They found that this cluster harbors two stellar populations with different metallicities.....»»
Bio-based fibers could pose greater threat to environment than conventional plastics
Bio-based materials may pose a greater health risk to some of the planet's most important species than the conventional plastics they are designed to replace, a new study has shown......»»
Biologists reveal the genetic "switch" behind parrot color diversity
From the Carnival in Rio de Janeiro to the shoulders of pirates: parrots are synonymous with color for people across the world. In a study published in the journal Science, scientists from The University of Hong Kong, together with an international t.....»»
Not the usual suspects: Research reveals novel genetic basis of pest resistance to biotech crops
If left unchecked, insect pests can devastate crops. To minimize damage and reduce the need for insecticide sprays, crops have been genetically engineered to produce bacterial proteins that kill key pests but are not harmful to people or wildlife. Ho.....»»
Genome sequencing of all four Macadamia species unlocks new potential for crop improvement
A research team has successfully sequenced and assembled the genomes of all four Macadamia species, marking a significant advance in crop improvement efforts for this commercially valuable nut. The findings reveal key genetic traits that could enhanc.....»»
Despite democracy concerns, researchers find Americans very interested in election
A nationally representative survey of U.S. adults finds a public highly attuned to the 2024 election campaign. Researchers at the University of South Florida's Center for Sustainable Democracy, in partnership with researchers at Rutgers University, t.....»»
How to get all pets in Stardew Valley
Stardew Valley's 1.6 update allows players to adopt more than one pet. It also brought along turtles as a new species. We'll tell you how to adopt more pets......»»
Guns, militia and social media amplify the risks of political violence during the US election
Political violence is hardly new to America. Since the country's inception, gunmen have shaped its political landscape, from the Civil War to the Ku Klux Klan, to high-profile assassinations and the bombing of federal buildings. Yet the threat of pol.....»»