Life Sciences

Scientists uncover new way viruses fight back against bacteria
  1. Life Sciences

A fossil first: Scientists find 1.5-million-year-old footprints of two different species of human ancestors at same spot

More than a million years ago, on a hot savannah teeming with wildlife near the shore of what would someday become Lake Turkana in Kenya, two completely different species of hominins may have passed each other as they scavenged for food. Scientists know this because they have examined 1.5-million-year-old fossils they unearthed and have concluded […]
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Scientists uncover new way viruses fight back against bacteria
  1. Life Sciences

Sea anemone study shows how animals stay ‘in shape’

Our bodies are remarkably skilled at adapting to changing environments. For example, whether amid summer heat or a winter freeze, our internal temperature remains steady at 37°C, thanks to a process called homeostasis. This hidden balancing act is vital for survival, enabling animals to maintain stable internal conditions even as the external world shifts. But […]
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Scientists uncover new way viruses fight back against bacteria
  1. Life Sciences

Discovering the traits of extinct birds

Looking to inform the conservation of critically endangered bird species, University of Utah biologists completed an analysis identifying traits that correlate with all 216 bird extinctions since 1500. Species most likely to go extinct sooner were endemic to islands, lacked the ability to fly, had larger bodies and sharply angled wings, and occupied ecologically specific […]
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Scientists uncover new way viruses fight back against bacteria
  1. Life Sciences

Brain test shows that crabs process pain

Researchers from the University of Gothenburg are the first to prove that painful stimuli are sent to the brain of shore crabs providing more evidence for pain in crustaceans. EEG style measurements show clear neural reactions in the crustacean’s brain during mechanical or chemical stimulation. In the search for a better welfare of animals that […]
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Scientists uncover new way viruses fight back against bacteria
  1. Life Sciences

Bats’ amazing plan B for when they can’t hear

When bats can’t hear, new research finds that these hearing-dependent animals employ a remarkable compensation strategy. They adapt immediately and robustly, suggesting for the first time that bats’ brains are hard-wired with an ability to launch a Plan B in times of diminished hearing. The Johns Hopkins University work, newly published in Current Biology, raises […]
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Scientists uncover new way viruses fight back against bacteria
  1. Life Sciences

New technology points to unexpected uses for snoRNA

Dynamic, reversible modifications of DNA and RNA regulate how genes are expressed and transcribed, which can influence cellular processes, disease development, and overall organismal health. Small nucleolar RNAs (snoRNAs) are a common but overlooked group of guide RNA molecules that steer chemical modifications to cellular ribosomal RNA (rRNA) targets, like an usher showing someone to […]
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Scientists uncover new way viruses fight back against bacteria
  1. Life Sciences

Caste differentiation in ants | ScienceDaily

Most ants have two morphologically differentiated adult castes — queens and workers — each irreversibly specialized for either reproduction or nonreproductive altruism such as foraging, defense and care of maternal brood. Adult gynes (virgin queens) normally have higher body mass, wings and frontal eyes, as well as enlarged ovaries and a sperm storage organ. In […]
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Scientists uncover new way viruses fight back against bacteria
  1. Life Sciences

New gene drive reverses insecticide resistance in pests… then disappears

Insecticides have been used for centuries to counteract widespread pest damage to valuable food crops. Eventually, over time, beetles, moths, flies and other insects develop genetic mutations that render the insecticide chemicals ineffective. Escalating resistance by these mutants forces farmers and vector control specialists to ramp up use of poisonous compounds at increasing frequencies and […]
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Scientists uncover new way viruses fight back against bacteria
  1. Life Sciences

Scientists find a region of the mouse gut tightly regulated by the immune system

The intestine maintains a delicate balance in the body, absorbing nutrients and water while maintaining a healthy relationship with the gut microbiome, but this equilibrium is disrupted in parts of the intestine in conditions such as celiac disease, ulcerative colitis, and Crohn’s disease. Scientists don’t fully understand how different regions of the organ resist or […]
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Good Reads

A proteome-wide yeast degron collection for the dynamic study of protein function

Genome-wide collections of yeast strains, known as libraries, revolutionized the way systematic studies are carried out. Specifically, libraries that involve a cellular perturbation, such as the deletion collection, have facilitated key biological discoveries. However, short-term rewiring and long-term accumulation of suppressor mutations often obscure the functional consequences of such perturbations. We present the AID library […]
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Columbia Climate School Hosts Ninth Annual Sustainability Careers Reception – State of the Planet

Practitioners who attended the 2024 Sustainability Careers Reception. (*See below for names and affiliations) Last month, the Columbia Climate School hosted its ninth annual Sustainability Careers Reception at the Columbia Club in Midtown Manhattan. Thirty-three sustainability professionals and 88 Columbia students from varying backgrounds and degree pursuits gathered to discuss the ever-pressing challenges and real-world […]
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Worlwide

A proteome-wide yeast degron collection for the dynamic study of protein function

Genome-wide collections of yeast strains, known as libraries, revolutionized the way systematic studies are carried out. Specifically, libraries that involve a cellular perturbation, such as the deletion collection, have facilitated key biological discoveries. However, short-term rewiring and long-term accumulation of suppressor mutations often obscure the functional consequences of such perturbations. We present the AID library […]
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Columbia Climate School Hosts Ninth Annual Sustainability Careers Reception – State of the Planet

Practitioners who attended the 2024 Sustainability Careers Reception. (*See below for names and affiliations) Last month, the Columbia Climate School hosted its ninth annual Sustainability Careers Reception at the Columbia Club in Midtown Manhattan. Thirty-three sustainability professionals and 88 Columbia students from varying backgrounds and degree pursuits gathered to discuss the ever-pressing challenges and real-world […]
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Scientists uncover new way viruses fight back against bacteria

Conserving high-elevation grasslands in Peru is key to protect Andean bears

Andean bears carefully select the best foraging locations and plants to maximize nutrition and avoid livestock, according to a study publishing December 18, 2024, in the open-access journal PLOS ONE by Nicholas Pilfold at the San Diego Zoo Wildlife Alliance in California, U.S., and colleagues. Andean bears, also known as ‘spectacled bears’ because of the […]
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