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Categories: Anthropology: Early Humans, Geoscience: Volcanoes
Published Elephant ancestors´ teeth evolved in response to long term changes in diet and climate in Africa
(via sciencedaily.com) Original source A new study shows that the cheek teeth of proboscideans (elephants and their ancient relatives) evolved in response to dietary changes due to vegetation changes and climate change in East Africa during the last 26 million years.
Published A climate-orchestrated early human love story
(via sciencedaily.com) Original source A new study finds that past changes in atmospheric CO2 and corresponding shifts in climate and vegetation played a key role in determining when and where early human species interbred.
Published How a massive North Atlantic cooling event disrupted early human occupation in Europe
(via sciencedaily.com) Original source A new study finds that around 1.12 million years ago a massive cooling event in the North Atlantic and corresponding shifts in climate, vegetation and food resources disrupted early human occupation of Europe.
Published Carbon dioxide -- not water -- triggers explosive basaltic volcanoes
(via sciencedaily.com) Original source Geoscientists have long thought that water -- along with shallow magma stored in Earth's crust -- drives volcanoes to erupt. Now, thanks to newly developed research tools, scientists have learned that gaseous carbon dioxide can trigger explosive eruptions.
Published Research reveals Hawai'i's undersea volcano, Kama'ehu, erupted five times in past 150 years
(via sciencedaily.com) Original source Kama?ehuakanaloa (formerly L??ihi Seamount), a submarine Hawaiian volcano located about 20 miles off the south coast of the Big Island of Hawai'i, has erupted at least five times in the last 150 years, according to new research led by Earth scientists at the University of Hawai'i at M?noa.
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.
Published Family trees from the European Neolithic
(via sciencedaily.com) Original source The Neolithic burial site of Gurgy 'les Noisats' in France revealed two unprecedentedly large family trees which allowed a Franco-German team to explore the social organization of the 6,700-year-old community. Based on multiple lines of evidence, the team describes a close kin group which practiced monogamy and female exogamy, and experienced generally stable times.
Published These bones were made for walking
(via sciencedaily.com) Original source The genetic changes that made it possible for humans to walk upright have been uncovered in a study that also shows how slight variations in skeletal proportions are linked to arthritis.
Published Butterflies and moths share ancient 'blocks' of DNA
(via sciencedaily.com) Original source Butterflies and moths share 'blocks' of DNA dating back more than 200 million years, new research shows.
Published Lasering lava to forecast volcanic eruptions
(via sciencedaily.com) Original source Researchers have optimized a new technique to help forecast how volcanoes will behave, which could save lives and property around the world.
Published Research reveals sources of CO2 from Aleutian-Alaska Arc volcanoes
(via sciencedaily.com) Original source Scientists have wondered what happens to the organic and inorganic carbon that Earth's Pacific Plate carries with it as it slides into the planet's interior along the volcano-studded Ring of Fire. A new study suggests a notable amount of such subducted carbon returns to the atmosphere rather than traveling deep into Earth's mantle.
Published Climate change will increase impacts of volcanic eruptions
(via sciencedaily.com) Original source Volcanic disasters have been studied since Pompeii was buried in 79 A.D., leading the public to believe that scientists already know why, where, when and how long volcanoes will erupt. But a volcanologist said these fundamental questions remain a mystery.
Published Humans' evolutionary relatives butchered one another 1.45 million years ago
(via sciencedaily.com) Original source Researchers have identified the oldest decisive evidence of humans' close evolutionary relatives butchering and likely eating one another.
Published Effect of volcanic eruptions significantly underestimated in climate projections
(via sciencedaily.com) Original source Researchers have found that the cooling effect that volcanic eruptions have on Earth's surface temperature is likely underestimated by a factor of two, and potentially as much as a factor of four, in standard climate projections.
Published Cave excavation pushes back the clock on early human migration to Laos
(via sciencedaily.com) Original source Fifteen years of archaeological work in the Tam Pa Ling cave in northeastern Laos has yielded a reliable chronology of early human occupation of the site. The team's excavations through the layers of sediments and bones that gradually washed into the cave and were left untouched for tens of thousands of years reveals that humans lived in the area for at least 70,000 years -- and likely even longer.
Published Focus on function helps identify the changes that made us human
(via sciencedaily.com) Original source Research sheds light on human evolution, and demonstrates an approach for identifying significant differences in how genes are used between closely-related species.
Published A Tongan volcano plume produced the most intense lightning rates ever detected
(via sciencedaily.com) Original source New research showed that the plume emitted by the Hunga Volcano eruption in 2022 created the highest lightning flash rates ever recorded on Earth, more than any storm ever documented.
Published First hominin muscle reconstruction shows 3.2 million-year-old 'Lucy' could stand as erect as we can
(via sciencedaily.com) Original source Digital modelling of legendary fossil's soft tissue suggests Australopithecus afarensis had powerful leg and pelvic muscles suited to tree dwelling, but knee muscles that allowed fully erect walking.
Published Remains at Crenshaw site are local, ancestors of Caddo
(via sciencedaily.com) Original source Hundreds of human skulls and mandibles recovered from the Crenshaw site in southwest Arkansas are the remains of ancestors of the Caddo Nation and not foreign enemies, according to a new study.
Published New method traces ancestry of hybrid plants and animals
(via sciencedaily.com) Original source Hybrid plants and animals have complicated genomes. A biologist has discovered a way to reveal their parent species.