Saturday , October 21 2017

Biology

Dogs are More Expressive When Humans are Looking at Them

A team of researchers at the University of Portsmouth, UK, has found evidence that domestic dogs move their faces in direct response to human attention. Kaminski et al provide evidence that dogs are sensitive to the human’s attentional state when producing facial expressions, suggesting that facial expressions are not just …

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New Butterflyfish Species Discovered in Philippines: Roa rumsfeldi

A team of marine biologists from Monterey Bay Aquarium and the California Academy of Sciences has discovered and described a new species of the butterflyfish genus Roa from the Verde Island Passage in the Philippines, West Pacific Ocean. Roa rumsfeldi. Image credit: Luiz Rocha, California Academy of Sciences. “We named …

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New Study Shows How Bee’s Brain Functions to Guide It Home

According to a new study led by Lund University scientist Stanley Heinze, a network of compass and speed neurons in the bee brain integrates every detail of changes in direction and distance covered on outbound journeys, and enables the insect to return directly home. Brain of the sweat bee Megalopta …

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Raccoons Solve Aesop’s ‘Crow and Pitcher’ Puzzle

A new study published in the journal Animal Cognition demonstrates that raccoons (Procyon lotor) are able to learn to solve complex problems and that they approach classic tests of animal cognition in diverse and exciting ways. Raccoons learn to drop stones into a tube of water to retrieve a floating …

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Flying Foxes Play Important Role in Pollination of Durian

Using camera traps, University of Nottingham researcher Sheema Abdul Aziz and colleagues collected video evidence showing the small flying fox (Pteropus hypomelanus) pollinating the flowers of durian (Durio zibethinus). Small flying foxes (Pteropus hypomelanus). Image credit: Zoo Leipzig. Large fruit bats of the genus Pteropus are severely threatened by hunting …

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Human Brain Has Lymphatic System, Scientists Discover

A team of researchers from the National Institutes of Health has discovered lymphatic vessels in the dura, the leathery outer coating of the brain. Described in the journal eLife, the discovery holds promise for better understanding the normal physiology of lymphatic drainage from the central nervous system and potential aberrations …

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‘Nutcracker Man’ Gave Us Genital Herpes, Study Says

New research from the University of Cambridge and Oxford Brookes University predicts which species acted as an intermediary between the ancestors of Homo sapiens and those of chimpanzees to carry the herpes simplex virus 2 (HSV2) — a human herpesvirus found worldwide that causes genital lesions and more rarely causes …

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Tool Use Comes Naturally to Chimpanzees

A new study has found that chimpanzees (Pan troglodytes) can use tools spontaneously to solve a task, without needing to watch others first. Chimpanzee tool-use is fuelled mainly by individual learning, according to the study. Image credit: Marcel Langthim. University of Birmingham researchers Elisa Bandini and Claudio Tennie looked for …

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