Tag Archives: Anatomy

New discovery on how the inner ear works

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Researchers have found that the parts of the inner ear that process sounds such as speech and music seem to work differently than other parts of the inner ear. Researchers from Linköping University are part of the team behind the discovery. “This helps us understand the mechanisms that enable us to perceive speech and music. […]

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Infant bodies were ‘prized’ by 19th century anatomists, study suggests

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A new study of the University of Cambridge anatomy collection suggests that the bodies of foetuses and babies were a “prized source of knowledge” by British scientists of the 18th and 19th centuries, and were dissected more commonly than previously thought and quite differently to adult cadavers. Historical research combined with the archaeological assessment of […]

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New view of brain development: Striking differences between adult and newborn mouse brain

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Findings reveal mismatch between neuronal activity and blood flow in the brains of newborn mice, shedding new light on how the growing brain feeds itself. Columbia scientists have found that spikes in the activity of neurons in young mice do not spur corresponding boosts in blood flow — a discovery that stands in stark contrast […]

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Mental abilities are shaped by individual differences in the brain

Everyone has a different mixture of personality traits: some are outgoing, some are tough and some are anxious. A new study suggests that brains also have different traits that affect both anatomical and cognitive factors, such as intelligence and memory. “A major focus of research in cognitive neuroscience is understanding how intelligence is shaped by […]

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Chimpanzee personality linked to anatomy of brain structures

Chimpanzees’ personality traits are linked to the anatomy of specific brain structures, according to researchers at Georgia State University, The University of Texas MD Anderson Cancer Center and University of Copenhagen. The findings, published online in the journal NeuroImage in August, reveal that both gray- matter volumes of various frontal cortex regions and gray-matter volume […]

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How do vertebrates take on their form?

A simple physical mechanism that can be assimilated to folding, or buckling, means that an unformed mass of cells can change in a single step into an embryo organized as a typical vertebrate. This is the main conclusion of work by a team involving physicists from the Laboratoire Matière et Systèmes Complexes (CNRS/Université Paris Diderot) […]

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* Unexpectedly speedy expansion of human, ape cerebellum

A new study published in the Cell Press journal Current Biology on October 2 could rewrite the story of ape and human brain evolution. While the neocortex of the brain has been called “the crowning achievement of evolution and the biological substrate of human mental prowess,” newly reported evolutionary rate comparisons show that the cerebellum […]

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Animals first flex their muscles: Earliest fossil evidence for animals with muscles

A new fossil discovery identifies the earliest evidence for animals with muscles. An unusual new fossil discovery of one of the earliest animals on earth may also provide the oldest evidence of muscle tissue — the bundles of cells that make movement in animals possible. The fossil, dating from 560 million years ago, was discovered […]

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Evolutionary biology: Why cattle, pigs only have two toes

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The fossil record shows that the first primitive even-toed ungulates had legs with five toes (=digits), just like modern mice and humans. During their evolution, the basic limb skeletal structure was significantly modified such that today’s hippopotami have four toes, while the second and fifth toe face backwards in pigs. During evolutionary diversification of vertebrate […]

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A new toad from the ”warm valleys” of Peruvian Andes

A new species of toad was discovered hiding in the leaf litter of the Peruvian Yungas. The word is used widely by the locals to describe ecoregion of montane rainforests, and translates as “warm valley” in English. The new species Rhinella yunga was baptized after its habitat preference. The study was published in the open […]

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