Episodes
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Hippos that escaped from drug kingpin Pablo Escobar’s private zoo are reproducing in the wild. And with increasing numbers, they could threaten ecosystems.
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Art created by Australian Aboriginal people used organic carbon-free pigments, but wasp nests above or below the art can be used for radiocarbon dating that supplies boundaries for the age of artworks.
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Missing episodes?
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Ice cores from a Tibetan glacier reveal the first deposits of industrial revolution pollution, starting in layers dated to about 1780.
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A new study in mice concludes stress can cause gray hair—and credits overactive nerves with the change in hue. Karen Hopkin reports.
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A very fine grind can actually hamper espresso brewing, because particles may clump more than larger particles will.
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Most feral dogs that did not run away from humans were able to respond to hand cues about the location of food—even without training.
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Neandertals ate clams and then modified the hard shells into tools for cutting and scraping.
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Whiskeys claimed to be from the 19th century are revealed to be made with much more recently grown barley, thanks to the unique isotopic fingerprint of the nuclear-testing era.
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By outfitting 169 albatrosses with GPS data loggers, scientists were able to track fishing boats apparently trying to hide their location. Christopher Intagliata reports.
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Here are a few brief reports about international science and technology from around the world, including one from the Democratic Republic of the Congo about a toad that has evolved coloring that makes it look like a deadly snake’s head.
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Groundhogs are less accurate at weather forecasting than are coin flips, but they are nonetheless pretty interesting critters.
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One hypothesis says the ability to vocalize arose in nocturnal animals—and a new evolutionary analysis suggests there may be some truth to it. Christopher Intagliata reports.
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Well more than 100 distinct sign languages exist worldwide, with each having features that made it possible for researchers to create an evolutionary tree of their lineages.
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Researchers dialed down the default number of opioids in two hospitals’ prescription systems—and doctors ended up prescribing fewer pills. Christopher Intagliata reports.
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Some wolf pups will play fetch with a stranger, suggesting that an ability to playfully interact with people could have come before, and played a role in, dog domestication.
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By listening to the sounds of the forest, biologists were able to identify an invasion of barred owls in spotted owl habitat. Christopher Intagliata reports.
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The cat parasite Toxoplasma gondii boosts curiosity in mice—which makes them more likely to be caught by cats, thus continuing the parasite’s life cycle. Karen Hopkin reports.
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The remora clings to other fish—and appears to use an unusual sense of touch to do so. Christopher Intagliata reports.
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Mussels and crabs are two of the creatures most likely to invade Antarctica in the next 10 years, a panel of scientists say. Christopher Intagliata reports.
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Soil bacteria may have taken residence in early algal species, gifting the algae with the ability to withstand drier conditions on land. Annie Sneed reports.
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