Anthropology: Early Humans Anthropology: General Environmental: Ecosystems Environmental: Water Geoscience: Geography
Published

Early human migrants followed lush corridor-route out of Africa      (via sciencedaily.com)     Original source 

Scientists have found early human migrants left Africa for Eurasia, across the Sinai peninsula and on through Jordan, over 80-thousand years ago. Researchers have proved there was a 'well-watered corridor' which funneled hunter-gatherers through The Levant towards western Asia and northern Arabia via Jordan.

Anthropology: Early Humans Anthropology: General Ecology: General Environmental: General Environmental: Wildfires Geoscience: Geochemistry Geoscience: Severe Weather Paleontology: Climate
Published

Climate and human land use both play roles in Pacific island wildfires past and present      (via sciencedaily.com)     Original source 

It’s long been understood that human settlement contributes to conditions that make Pacific Islands more susceptible to wildfires, such as the devastating Aug. 8 event that destroyed the Maui community of Lahaina. But a new study from fire scientist shows that climate is an undervalued part of the equation.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Zoology Ecology: Animals Ecology: Nature Paleontology: Early Mammals and Birds
Published

Genome study reveals 30 years of Darwin's finch evolution      (via sciencedaily.com)     Original source 

An international team of researchers has released a landmark study on contemporary evolutionary change in natural populations. Their study uses one of the largest genomic datasets ever produced for animals in their natural environment, comprising nearly 4,000 Darwin's finches. The study has revealed the genetic basis of adaptation in this iconic group.

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

Pollen analysis suggests peopling of Siberia and Europe by modern humans occurred during a major Pleistocene warming spell      (via sciencedaily.com)     Original source 

A new study appearing in Science Advances compares Pleistocene vegetation communities around Lake Baikal in Siberia, Russia, to the oldest archeological traces of Homo sapiens in the region. The researchers use the 'remarkable evidence' to tell a compelling story from 45,000-50,000 years ago with new detail: how the first humans migrated across Europe and Asia.

Anthropology: Early Humans Anthropology: General Archaeology: General Environmental: Ecosystems
Published

Probing the deep genetic structure of Africa      (via sciencedaily.com)     Original source 

Using ancestry decomposition techniques an international research team has revealed a deeply divergent ancestry among admixed populations from the Angolan Namib desert. This unique genetic heritage brings the researchers closer to understanding the distribution of genetic variation in the broader region of southern Africa before the spread of food production.

Biology: Evolutionary Biology: Zoology Ecology: Nature Paleontology: Early Mammals and Birds
Published

Researchers' analysis of perching birds points to new answers in evolutionary diversification      (via sciencedaily.com)     Original source 

When Charles Darwin traveled to the Galapagos Islands almost 200 years ago as a gentleman naturalist, he used the power of observation to develop his theory that species evolve over time.

Anthropology: Cultures Anthropology: Early Humans Anthropology: General Archaeology: General Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
Published

Archaeologists discover world's oldest wooden structure      (via sciencedaily.com)     Original source 

Half a million years ago, earlier than was previously thought possible, humans were building structures made of wood, according to new research.

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

Slow growth in crocodile ancestors pre-dated their semi-aquatic lifestyle      (via sciencedaily.com)     Original source 

A groundbreaking study is reshaping our understanding of crocodile evolution by pinpointing the onset of slow growth rates to the Late Triassic period, much earlier than the previously assumed Early Jurassic timeline. The research highlights newly discovered fossil crocodile ancestors (known as crocodylomorphs) that exhibited slow growth rates, similar to modern-day crocodilians. Intriguingly, these early crocodylomorphs were not the lethargic, semi-aquatic creatures we are familiar with today; they were small, active, and fully terrestrial. The study also suggests that this slow-growth strategy was not a mere evolutionary quirk but a survival mechanism, as only the slow-growing crocodylomorphs managed to survive the End-Triassic mass extinction. This stands in stark contrast to the fast-growing dinosaurs of the same era, setting the stage for the divergent evolutionary paths that would later define their modern descendants.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Animals Ecology: Extinction Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Early Mammals and Birds Paleontology: Fossils Paleontology: General
Published

RNA for the first time recovered from an extinct species      (via sciencedaily.com)     Original source 

A new study shows the isolation and sequencing of more than a century-old RNA molecules from a Tasmanian tiger specimen preserved at room temperature in a museum collection. This resulted in the reconstruction of skin and skeletal muscle transcriptomes from an extinct species for the first time. The researchers note that their findings have relevant implications for international efforts to resurrect extinct species, including both the Tasmanian tiger and the woolly mammoth, as well as for studying pandemic RNA viruses.

Anthropology: Early Humans Anthropology: General Biology: Evolutionary Ecology: Animals Ecology: Trees Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals
Published

Human shoulders and elbows first evolved as brakes for climbing apes      (via sciencedaily.com)     Original source 

Researchers report that the flexible shoulders and elbows that allow us to throw a football or reach a high shelf may have evolved as a natural braking system that let our primate ancestors get out of trees without dying. The researchers used sports-analysis software to compare the climbing movements of chimpanzees and small monkeys called mangabeys. While the animals climb up trees similarly, the researchers found that the shallow, rounded shoulder joints and shortened elbow bones that chimps have -- similar to humans -- allow them to fully extend their arms above their heads when climbing down, holding onto branches like a person going down a ladder to support their greater weight. When early humans left forests for the grassy savanna, these versatile appendages would have been essential for gathering food and using tools for hunting and defense. The findings are among the first to identify the significance of 'downclimbing' in the evolution of apes and early humans.

Biology: Biotechnology Biology: Evolutionary Biology: Genetics Biology: Marine Ecology: Animals Ecology: Sea Life Paleontology: Early Mammals and Birds Paleontology: General
Published

Mutation rates in whales are much higher than previously reported      (via sciencedaily.com)     Original source 

An international team of marine scientists has studied the DNA of family groups from four different whale species to estimate their mutation rates. Using the newly determined rates, the group found that the number of humpback whales in the North Atlantic before whaling was 86 percent lower than earlier studies suggested.

Anthropology: Early Humans Anthropology: General Offbeat: Paleontology and Archeology
Published

Iceman Ötzi: Dark skin, bald head, Anatolian ancestry      (via sciencedaily.com)     Original source 

A research team has used advanced sequencing technology to analyze Ötzi's genome to obtain a more accurate picture of the Iceman's appearance and genetic origins.

Anthropology: Early Humans Anthropology: General Paleontology: Climate Paleontology: General
Published

Key role of ice age cycles in early human interbreeding      (via sciencedaily.com)     Original source 

Recent paleogenomic research revealed that interbreeding was common among early human species. However, little was known about when, where, and how often this hominin interbreeding took place. Using paleoanthropological evidence, genetic data, and supercomputer simulations of past climate, a team of international researchers has found that interglacial climates and corresponding shifts in vegetation created common habitats for Neanderthals and Denisovans, increasing their chances for interbreeding and gene flow in parts of Europe and central Asia.

Anthropology: Early Humans Biology: Evolutionary Paleontology: Climate
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.

Anthropology: Early Humans Anthropology: General Environmental: Ecosystems Paleontology: Climate
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.

Anthropology: Early Humans Anthropology: General Geoscience: Environmental Issues Geoscience: Oceanography Paleontology: Climate
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.

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.