Reporting in Science, researchers write of an experiment in which rats worked to open the cages of trapped rats, but not empty or dummy-filled cages. Author Peggy Mason discusses empathy in non-primates, and the value rats place on freeing a companion--about equal to that of a stash of chocolate chips.
Adult Burmese pythons can swallow prey as large as deer. Now, researchers from the University of Colorado, Boulder say the way the python's heart balloons after it eats could help treat human heart disease. Molecular biologist Leslie Leinwand discusses her team's python experiments.
Biotech company AquaBounty has not yet received FDA approval for its fast-growing, genetically-modified salmon. Biotechnologist Alison Van Eenennaam and environmental scientist Anne Kapuscinski discuss the food safety and environmental concerns associated with transgenic fish.
Presenting at a meeting of the American Society of Tropical Medicine and Hygiene, researchers said bedbugs can survive many generations of inbreeding, allowing one pregnant female to cause a building-wide infestation. Biologist Rajeev Vaidyanathan discusses that study, and another on pesticide resistance.
Bedbugs' eagerness to mate with their kin is one reason their populations have taken off so dramatically, new research suggests. Inbreeding comes naturally to them, and it doesn't seem to hurt their offspring much, as is the case with most other creatures.
The depths of our oceans are dark, punishingly cold and utterly devoid of life. Or so scientists thought, until a team of researchers in the late 1970s stumbled upon squishy, rubbery worms, up to 7 feet long, living 8,000 feet below the surface of the Pacific.
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