Tag Archives: Ecology / Environment

How an infectious tumor in Tasmanian devils evolved as it spread

[ad_1] IMAGE: A young Tasmanian devil. Tasmanian devils are threatened by devil 1 face tumor (DFT1), a transmissible cancer. View More Credit: Maximilian Stammnitz A transmissible cancer in the Tasmanian devil has evolved over the past two decades, with some lineages spreading and replacing others, according to a new study …

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How dolphins avoid “curves”

[ad_1] Dolphins actively slow their hearts before diving and can even adjust their heart rate depending on how long they intend to dive, suggests a new study. Posted in Frontiers in physiology, the findings provide new insights into how marine mammals conserve oxygen and adapt to pressure when diving. The …

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Monitoring and fighting fires on land and beyond

[ad_1] Mechanical engineer Michael Gollner and his graduate student, Sriram Bharath Hariharan, of the University of California, Berkeley, recently visited NASA’s John H. Glenn Research Center in Cleveland, Ohio. There, they dropped burning objects into a deep pit and studied how fire vortices form in microgravity conditions. The Glenn Center …

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The caterpillars are very hungry and angry

[ad_1] In the absence of euphorbia – their favorite food – the caterpillars of monarch butterflies (Danaus plexippus) go from peaceful feeders to aggressive fighters. Researchers reporting in the journal iScience on November 19 he observed that caterpillars with less access to food were more likely to lunge at others …

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These masked singers are bats

[ad_1] IMAGE: The wrinkled-faced Centurio senex bat males display a hairy crease that can be pulled up to cover the lower half of the face like a mask. View More Credit: Marco Tschapka Wrinkled-faced bats not only have the most twisted faces of any bat species, the males also have …

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Noise and light alter bird nesting habits and success

[ad_1] IMAGE: The northern cardinal has relatively low frequency chant and delayed playback in response to noise pollution. View More Credit: David Keeling Are you looking for a bird’s-eye view of human impact? A new study published in the journal Nature provides the most comprehensive picture of how human noise …

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