Showing 20 articles starting at article 261

< Previous 20 articles        Next 20 articles >

Categories: Environmental: Wildfires, Paleontology: Fossils

Return to the site home page

Anthropology: Cultures Anthropology: General Archaeology: General Biology: Molecular Paleontology: Fossils
Published

Ancient metal cauldrons give us clues about what people ate in the Bronze Age      (via sciencedaily.com)     Original source 

Archaeologists have long been drawing conclusions about how ancient tools were used by the people who crafted them based on written records and context clues. But with dietary practices, they have had to make assumptions about what was eaten and how it was prepared. A new study analyzed protein residues from ancient cooking cauldrons and found that the people of Caucasus ate deer, sheep, goats, and members of the cow family during the Maykop period (3700--2900 BCE).

Biology: Evolutionary Biology: Marine Ecology: Invasive Species Ecology: Sea Life Paleontology: Fossils Paleontology: General
Published

The modern sea spider had started to diversify by the Jurassic, study finds      (via sciencedaily.com)     Original source 

An extremely rare collection of 160-million-year-old sea spider fossils from Southern France are closely related to living species, unlike older fossils of their kind.

Ecology: Trees Environmental: Ecosystems Environmental: Wildfires Geoscience: Environmental Issues Geoscience: Severe Weather
Published

Without aggressive climate action, U.S. property values will take a hit from escalating wildfire risk and tree mortality, study finds      (via sciencedaily.com)     Original source 

Research attempts to quantify the value of U.S. property at risk in forested areas exposed to increased ecological disturbance associated with climate change, such as wildfire and tree mortality. Property exposed to such climate risks, especially in California, is project to climb substantially if emission-reduction measures are not taken.

Anthropology: Cultures Anthropology: General Archaeology: General Paleontology: Fossils
Published

Unveiling Japan's ancient practice of cranial modification: The case of the Hirota people in Tanegashima      (via sciencedaily.com)     Original source 

Cranial modification is a form of body alteration where the head is pressed or bound to permanently deform the skull. The practice has been reported across various cultures throughout history. Researchers report that the Hirota people -- who lived on the southern Japanese island of Tanegashima between the 3rd to 7th century CE -- also conducted cranial modification, with indication that both males and females performed the practice.

Paleontology: Dinosaurs Paleontology: Fossils Paleontology: General
Published

Scientists explore dinosaur 'Coliseum' in Denali National Park      (via sciencedaily.com)     Original source 

Scientists have discovered and documented the largest known single dinosaur track site in Alaska. The site, located in Denali National Park and Preserve, has been dubbed 'The Coliseum' by researchers.

Environmental: Ecosystems Environmental: Wildfires Geoscience: Severe Weather
Published

Dry lightning can spark wildfires even under wetter conditions      (via sciencedaily.com)     Original source 

Dry lightning can still be disastrous even when conditions aren't so dry, a study has found. These cloud-to-ground strikes during little to no rainfall were previously thought to pose wildfire danger only if occurring with less than 2.5 mm of rain in a day (about 0.10 inches). A new study of lightning-ignited wildfires in the U.S. West found the strikes caused wildfires despite up to 7.7 mm (about 0.3 inches) of precipitation. While still a low amount of rain, the more accurate estimation could help responders detect fires earlier, especially those known as 'holdovers,' which can smolder for many days before exploding into full-blown wildfires.

Environmental: Wildfires Geoscience: Environmental Issues
Published

Wildfires and farming activities may be top sources of air pollution linked to increased risk, cases of dementia      (via sciencedaily.com)     Original source 

No amount of air pollution is good for the brain, but wildfires and the emissions resulting from agriculture and farming in particular may pose especially toxic threats to cognitive health, according to new research.

Biology: Evolutionary Biology: Marine Paleontology: Fossils Paleontology: General
Published

Evolving elegance: Scientists connect beauty and safeguarding in ammonoid shells      (via sciencedaily.com)     Original source 

With 350 million years of evolution culminating in almost two centuries of scientific discourse, a new hypothesis emerges. Researchers propose a new explanation for why ammonoids evolved a highly elaborate, fractal-like geometry within their shells. Their analysis shows that the increasing complexity of shell structures provided a distinct advantage by offering improved protection against predators.

Archaeology: General Ecology: Research Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

Fossil feces infested with parasites from over 200 million years ago      (via sciencedaily.com)     Original source 

Fossilized feces preserve evidence of ancient parasites that infected an aquatic predator over 200 million years ago, according to a new study.

Anthropology: General Paleontology: Fossils
Published

Ancient DNA reveals an early African origin of Cattle in the Americas      (via sciencedaily.com)     Original source 

Using ancient DNA, researchers have determined cattle were imported from Africa to the Americas much earlier in the process of European colonization than documented. The first records of African cattle in the Americas date back to the 1800s, leading some historians to conclude that early colonists relied entirely on a small stock of European cattle initially shipped to the Caribbean Islands. DNA from archaeological specimens pushes the introduction of African cattle back by more than 100 years.

Environmental: Wildfires Geoscience: Environmental Issues
Published

Wildfires emit potent climate-warming organic particles      (via sciencedaily.com)     Original source 

Researchers found that wildfires are causing a much greater warming effect than has been accounted for by climate scientists. The work, which focuses on the role of 'dark brown carbon' -- an abundant but previously unknown class of particles emitted as part of wildfire smoke -- highlights an urgent need to revise climate models and update approaches for the changing environment.

Ecology: General Ecology: Invasive Species Ecology: Research Environmental: Biodiversity Environmental: Ecosystems Environmental: Wildfires
Published

Scientists dig into wildfire predictions, long-term impacts      (via sciencedaily.com)     Original source 

Wildfires are an ancient force shaping the environment, but they have grown in frequency, range and intensity in response to a changing climate. Scientists are working on several fronts to better understand and predict these events and what they mean for the carbon cycle and biodiversity.

Biology: Evolutionary Biology: Marine Ecology: Sea Life Paleontology: Fossils Paleontology: General
Published

Oldest known species of swimming jellyfish identified      (via sciencedaily.com)     Original source 

Royal Ontario Museum announces the oldest swimming jellyfish in the fossil record with the newly named Burgessomedusa phasmiformis. This 505-million-year-old swimming jellyfish from the Burgess Shale highlights diversity in the Cambrian ecosystem.

Geoscience: Geology Paleontology: Fossils Space: The Solar System
Published

Earth's most ancient impact craters are disappearing      (via sciencedaily.com)     Original source 

Earth's oldest craters could give scientists critical information about the structure of the early Earth and the composition of bodies in the solar system as well as help to interpret crater records on other planets. But geologists can't find them, and they might never be able to, according to a new study.

Biology: Evolutionary Paleontology: Fossils Paleontology: General
Published

Bees evolved from ancient supercontinent, diversified faster than suspected      (via sciencedaily.com)     Original source 

The origin of bees is tens of millions of years older than most previous estimates, a new study shows. A team led by Washington State University researchers traced the bee genealogy back more than 120 million years to an ancient supercontinent, Gondwana, which included today's continents of Africa and South America.

Anthropology: Cultures Anthropology: Early Humans Anthropology: General Archaeology: General Geoscience: Environmental Issues Paleontology: Fossils
Published

New insights into the origin of the Indo-European languages      (via sciencedaily.com)     Original source 

An international team of linguists and geneticists has achieved a significant breakthrough in our understanding of the origins of Indo-European, a family of languages spoken by nearly half of the world's population.

Archaeology: General Ecology: Invasive Species Geoscience: Geology Paleontology: Fossils Paleontology: General
Published

Missing island explains how endemic species on the Miyako Islands emerged      (via sciencedaily.com)     Original source 

Miyako Islands are home to various native species of snake and lizards. How these species came to call these islands home has long puzzled scientists. A group of researchers have compiled the latest geological and biological data, proposing that an island once facilitated migration between Okinawa and Miyako Islands.

Ecology: General Ecology: Research Ecology: Trees Environmental: Ecosystems Environmental: Wildfires
Published

Research supports use of managed and prescribed fires to reduce fire severity      (via sciencedaily.com)     Original source 

Scientists found that fires in America's dry conifer forests are burning hotter and killing more trees today than in previous centuries. The main culprit? Paradoxically, a lack of fires.

Ecology: Endangered Species Paleontology: Fossils Paleontology: General
Published

Spurge purge: Plant fossils reveal ancient South America-to-Asia 'escape route'      (via sciencedaily.com)     Original source 

Newly identified plant fossils found in Argentina suggest that a group of spurges long thought to have Asian origins may have first appeared in Gondwanan South America.