Biology: Biochemistry Biology: Zoology Ecology: Extinction Ecology: Nature Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Early Mammals and Birds
Published

Rethinking the dodo      (via sciencedaily.com)     Original source 

Researchers are setting out to challenge our misconceptions about the Dodo, one of the most well-known but poorly understood species of bird. Researchers have undertaken the most comprehensive review of the taxonomy of the Dodo and its closest relative, the Rodriguez Island Solitaire.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Zoology Environmental: Ecosystems Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Blind cavefish have extraordinary taste buds      (via sciencedaily.com)     Original source 

A biologist studies blind cavefish, a species of fish that dwell in cave ponds in Mexico. He looked at the timeline for when the cavefish develop additional taste buds on the head and chin, finding the taste bud expansion starts at five months and continues into adulthood.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Offbeat: General Offbeat: Plants and Animals
Published

Surprise finding in study of environmental bacteria could advance search for better antibiotics      (via sciencedaily.com)     Original source 

Researchers studying bacteria from freshwater lakes and soil say they have determined a protein's essential role in maintaining the germ's shape. Because the integrity of a bacterial cell's 'envelope' or enclosure is key to its survival, the finding could advance the search for new and better antibiotics.

Biology: Botany Ecology: Endangered Species Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
Published

Why do plants wiggle? New study provides answers      (via sciencedaily.com)     Original source 

Decades after his voyage on the HMS Beagle, Charles Darwin became fascinated by why plants move as they grow -- spinning and twisting into corkscrews. Now, more than 150 years later, a new study may have solved the riddle.

Biology: Botany Biology: Zoology Ecology: Endangered Species Ecology: Extinction Ecology: Invasive Species Ecology: Nature Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

Giant fossil seeds from Borneo record ancient plant migration      (via sciencedaily.com)     Original source 

Ancient fossil beans about the size of modern limes, and among the largest seeds in the fossil record, may provide new insight into the evolution of today's diverse Southeast Asian and Australian rainforests, according to researchers who identified the plants.

Ecology: Nature Environmental: Ecosystems Environmental: General Environmental: Wildfires Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather
Published

Climate change raised the odds of unprecedented wildfires in 2023-24      (via sciencedaily.com)     Original source 

Unprecedented wildfires in Canada and parts of Amazonia last year were at least three times more likely due to climate change and contributed to high levels of CO2 emissions from burning globally, according to the a new systematic review. The State of Wildfires report takes stock of extreme wildfires of the 2023-2024 fire season (March 2023-February 2024), explains their causes, and assesses whether events could have been predicted. It also evaluates how the risk of similar events will change in future under different climate change scenarios.

Biology: Biochemistry Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular Biology: Zoology Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
Published

Rewriting the evolutionary history of critical components of the nervous system      (via sciencedaily.com)     Original source 

A new study has rewritten the conventionally understood evolutionary history of certain ion channels -- proteins critical for electrical signaling in the nervous system. The study shows that the Shaker family of ion channels were present in microscopic single cell organisms well before the common ancestor of all animals and thus before the origin of the nervous system.

Biology: Biochemistry Biology: Biotechnology Biology: General Biology: Zoology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Reduce, reuse, 're-fly-cle'      (via sciencedaily.com)     Original source 

Black soldier flies are now commercially used to consume organic waste -- but genetic modifications proposed by bioscientists could see the insects digesting a wider variety of refuse, while also creating raw ingredients for industry.

Environmental: General Environmental: Wildfires Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Canadian wildfires are affecting US air quality and raising health concerns      (via sciencedaily.com)     Original source 

Climate-driven wildfire events are rapidly transferring harmful particulate matter containing toxic chemicals over long distances, compromising air quality in the New Jersey and New York City areas, according to recent research.

Geoscience: Environmental Issues Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Early Mammals and Birds Paleontology: General
Published

When mammoths roamed Vancouver Island      (via sciencedaily.com)     Original source 

Mammoths, the massive pre-historic ice age cousins of the modern-day elephant, have always been understood to have inhabited parts of British Columbia, but the question of when has always been a bit woolly. Now, a new study has given scientists the clearest picture yet when the giant mammals roamed Vancouver Island.

Biology: Biochemistry Biology: General Biology: Zoology Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Fishing is causing frightened fish to flee when they should flirt      (via sciencedaily.com)     Original source 

Populations of squaretail grouper face an uncertain future as new research shows fishing that targets their spawning sites is causing males to be repeatedly scared away from their territories during their short mating meet-ups. By fleeing for safety, individuals are losing valuable time to catch the eye and court female fish.

Offbeat: General Offbeat: Plants and Animals
Published

Social rank may determine if animals live fast, die young      (via sciencedaily.com)     Original source 

Social rank may determine whether animals prioritize immediate fitness over long-term health, according to a study. Researchers studied macaques on a Thai island and found that the animals' unusual habit of washing their food is in fact based on social rank. Dominant monkeys quickly brush their food on their fur before eating it, along with mouthfuls of tooth-degrading sand, while lower-ranked monkeys obsessively wash their food in the surf. Citing the disposable soma hypothesis, the researchers suggest that high-ranking macaques are looking to quickly consume energy to mate and fend off challengers. But food-washing monkeys may be preserving their long-term health to produce more offspring over time. The findings could shed light on how the wear observed in the fossilized teeth of early humans relates to social structure.

Environmental: General Environmental: Water Environmental: Wildfires Geoscience: Environmental Issues
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New York City's fireworks display prompts temporary surge of air pollution      (via sciencedaily.com)     Original source 

In 2023, roughly 60,000 firework shells exploded above Manhattan's East River as part of Macy's Fourth of July show. The resulting air pollutant levels were many times higher in the hours after the display than those seen when smoke from a Canadian wildfire had blanketed the area a month before, according to the results of a new study.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Offbeat: General Offbeat: Plants and Animals
Published

When it comes to DNA replication, humans and baker's yeast are more alike than different      (via sciencedaily.com)     Original source 

Humans and baker's yeast have more in common than meets the eye, including an important mechanism that helps ensure DNA is copied correctly, reports a pair of studies. The findings visualize for the first time a molecular complex -- called CTF18-RFC in humans and Ctf18-RFC in yeast -- that loads a 'clamp' onto DNA to keep parts of the replication machinery from falling off the DNA strand.

Anthropology: Early Humans Anthropology: General Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Zoology Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

Half a billion-year-old spiny slug reveals the origins of mollusks      (via sciencedaily.com)     Original source 

Exceptional fossils with preserved soft parts reveal that the earliest mollusks were flat, armored slugs without shells. The new species, Shishania aculeata, was covered with hollow, organic, cone-shaped spines. The fossils preserve exceptionally rare detailed features which reveal that these spines were produced using a sophisticated secretion system that is shared with annelids (earthworms and relatives).

Biology: Biochemistry Biology: Cell Biology Biology: General Chemistry: Biochemistry Offbeat: Computers and Math Offbeat: General Offbeat: Plants and Animals Physics: Optics
Published

Super-black wood can improve telescopes, optical devices and consumer goods      (via sciencedaily.com)     Original source 

Thanks to an accidental discovery, researchers have created a new super-black material that absorbs almost all light, opening potential applications in fine jewelry, solar cells and precision optical devices.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Microbiology Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Offbeat: General Offbeat: Plants and Animals
Published

Injury dressings in first-aid kits provide a new technique to reveal shark species after bite incidents      (via sciencedaily.com)     Original source 

Scientists have revealed that injury dressings found in first-aid kits can reliably be used to identify shark species involved in bite incidents by deploying medical gauze to gather DNA samples from aquatic equipment, such as surfboards.