Search Results for: History

Paleontology

Newly Identified Saber-toothed Cat is One Of Largest in History (Paleontology)

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Giant cat roamed North America 5-9 million years ago A giant saber-toothed cat lived in North America between 5 million and 9 million years ago, weighing up to 900 pounds and hunting prey that likely weighed 1,000 to 2,000 pounds, scientists reported today in a new study. The researchers completed a painstaking comparison of seven … Continue reading Newly Identified Saber-toothed Cat is One Of Largest in History (Paleontology) →

Botany

Researchers Unveil Geological History of Three Great Asian Plateaus (Botany)

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The collisions of Indian Subcontinent with Eurasia in the east and Arabian plate with Eurasia in the west are two important tectonic events in Asia, and have greatly changed Asian topography and affected regional and global climate as well as biotic evolution. However, the geological evolution of Asia related to these two collisions remains debated.   The … Continue reading Researchers Unveil Geological History of Three Great Asian Plateaus (Botany) →

Planetary Science

Exploring Comet Thermal History: Burnt-out Comet Covered with Talcum Powder (Planetary Science)

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The world’s first ground-based observations of the bare nucleus of a comet nearing the end of its active life revealed that the nucleus has a diameter of 800 meters and is covered with large grains of phyllosilicate; on Earth large grains of phyllosilicate are commonly available as talcum powder. This discovery provides clues to piece … Continue reading Exploring Comet Thermal History: Burnt-out Comet Covered with Talcum Powder (Planetary Science) →

Astronomy

Peeping Milky Way’s Merging History: Reconstructing the Cetus Stream (Astronomy)

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Around the Milky Way, there are many river-like structures made up of stars. They are called stellar streams. How these stellar streams formed remains unclear.  Researchers led by Prof. ZHAO Gang and Dr. CHANG Jiang from National Astronomical Observatories of Chinese Academy of Sciences (NAOC) reproduced the formation process of the newly discovered Cetus stream in … Continue reading Peeping Milky Way’s Merging History: Reconstructing the Cetus Stream (Astronomy) →

Planetary Science

Apollo Rock Samples Capture Key Moments in the Moon’s Early History, Study Finds (Planetary Science)

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A new analysis of samples brought back from the Moon to helps clear up questions about the isotopic composition of Moon’s interior. Volcanic rock samples collected during NASA’s Apollo missions bear the isotopic signature of key events in the early evolution of the Moon, a new analysis found. Those events include the formation of the … Continue reading Apollo Rock Samples Capture Key Moments in the Moon’s Early History, Study Finds (Planetary Science) →

Earth Science

Ancient Relic Points to a Turning Point in Earth’s History 42,000 Years Ago (Earth Science)

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Just like in The Hitchhiker’s Guide to the Galaxy, the answer was 42. The temporary breakdown of Earth’s magnetic field 42,000 years ago sparked major climate shifts that led to global environmental change and mass extinctions, a new international study co-led by UNSW Sydney and the South Australian Museum shows. This dramatic turning point in Earth’s … Continue reading Ancient Relic Points to a Turning Point in Earth’s History 42,000 Years Ago (Earth Science) →

Uncategorized

Eyes Reveal Life History of Fish (Biology)

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Eye-Popping Research Helps Inform Salmon and Floodplain Management If you look deep into the eyes of a fish, it will tell you its life story. Scientists from the University of California, Davis, demonstrate that they can use stable isotopic analysis of the eye lenses of freshwater fish — including threatened and endangered salmon — to … Continue reading Eyes Reveal Life History of Fish (Biology) →

Uncategorized

Modeling Study of Ancient Thumbs Traces the History of Hominin Thumb Dexterity (Archeology)

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Despite long-standing ideas about the importance of thumb evolution in tool use and development, questions remain about exactly when human-like manual dexterity and efficient thumb use arose–and which hominin species was the first to have this ability. Now, researchers who’ve analyzed the biomechanics and efficiency of the thumb across different fossil human species using virtual … Continue reading Modeling Study of Ancient Thumbs Traces the History of Hominin Thumb Dexterity (Archeology) →

Archaeology

History of the Champagne Vineyards Revealed (Archeology)

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Although the reputation of Champagne is well established, the history of Champagne wines and vineyards is poorly documented. However, a research team led by scientists from the CNRS and the Université de Montpellier at the Institut des sciences de l’évolution de Montpellier1 has just lifted the veil on this history by analysing the archaeological grape seeds … Continue reading History of the Champagne Vineyards Revealed (Archeology) →