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Tag Archives: researchers

Extinct Sloth Lemur

An international team of scientists has discovered stylistically unique ancient drawings, including the only known prehistoric depiction of a now-extinct giant sloth lemur, on the walls of a rock shelter in western Madagascar. Photograph (top) and artist’s sketch (bottom) of the inferred hunting scene: hunter (background, left) extends weapon toward …

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Amino Acids in Antarctic

A team of astrobiologists from NASA’s Goddard Space Flight Center and the Carnegie Institution for Science has found a wide diversity of amino acids in Asuka 12236, a carbonaceous chondrite meteorite recovered from the Nansen Ice Field in Antarctica by Belgium and Japan researchers in 2012. This SEM image shows …

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History of Penguins

Genetic Researchers Reconstruct Evolutionary In a new study, an international team of scientists used 22 newly-sequenced genomes from 18 extant species of penguins to reconstruct the history of their diversification and adaptation. The authors found that ancient penguins diverged in the early Miocene epoch in Australia and New Zealand and …

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Taste Receptor Cells

Scientists have discovered a new population of taste cells that can detect multiple types of stimuli, including chemicals from different taste qualities. Most taste cells selectively respond to a specific stimulus type while broadly responsive cells respond to multiple taste qualities. Image credit: Jhanna Flora / Kathryn Medler. Taste buds …

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Bioelectronic Devices

Researchers Use Pencil to Draw Bioelectronic Devices on Human Skin Scientists from the University of Missouri, the University of Illinois and Yale University have demonstrated that a combination of pencils and paper could be used to create on-skin bioelectronic devices that might be used to monitor personal health. They’ve fabricated …

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Telomere To Telomere

Researchers Produce First ‘Telomere-To-Telomere’ Sequence of Human Chromosome A team of U.S. and U.K. scientists has generated the end-to-end gapless DNA sequence of the human X chromosome. A telomere is the end of a chromosome that protects the interior of a chromosome from damage during cell division. Image credit: Darryl …

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Unprecedented Detail

Researchers Capture Human Dental Enamel in Unprecedented Detail A research team led by Northwestern University scientists has uncovered the structural makeup of human dental enamel at unprecedented atomic resolution, revealing lattice patterns and unexpected irregularities. Enamel is made up of tightly bunched, oblong crystals that are about 1,000 times smaller …

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Caecilian Amphibians

Researchers Find Snake-Like Venom Glands in Caecilian Amphibians A team of scientists from Brazil and the United States has found the specialized oral glands in the jaws of the ringed caecilian (Siphonops annulatus), a snake-shaped amphibian related to frogs and salamanders. The ringed caecilian (Siphonops annulatus). Image credit: Carlos Jared. …

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Explore Europa’s Ocean

Planetary Researchers Explore Habitability of Europa’s Ocean A duo of U.S. planetary scientists has calculated that water in the subsurface ocean of Jupiter’s icy moon Europa could have been formed by breakdown of water-containing minerals due to either tidal forces or radioactive decay. Artist’s concept of ocean on Jupiter’s moon …

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GPS Tracking Red Pandas

Researchers Use GPS Collars An international team of scientists has conducted a GPS tracking collar study on red pandas (Ailurus fulgens) in eastern Nepal. This is the first time GPS collars have been used to study these elusive animals in the wild. Paaru, one of the red pandas tracked by the …

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