The turtle has always been considered somewhat odd in evolutionary terms. In addition to lacking the hole in the skull—the temporal fenestra—that is characteristic of the egg-laying amniotes, the structure of its shell ...
Ecology
Jun 28, 2013
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When a mouse smells a cat, it instinctively avoids the feline or risks becoming dinner. How? A Northwestern University study involving olfactory receptors, which underlie the sense of smell, provides evidence that a single ...
Biotechnology
Apr 29, 2013
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(Phys.org) —Increases in ground-level ozone, especially in rural areas, may interfere not only with predator insects finding host plants, but also with pollinators finding flowers, according to researchers from Penn State ...
Environment
Apr 2, 2013
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(Phys.org) —Early diagnosis is critical in treating Lyme disease. However, nearly one quarter of Lyme disease patients are initially misdiagnosed because currently available serological tests have poor sensitivity and specificity ...
Bio & Medicine
Mar 25, 2013
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Highly developed antennae containing different types of olfactory receptors allow insects to use minute amounts of odors for orientation towards resources like food, oviposition sites or mates. Scientists at the Max Planck ...
Plants & Animals
Mar 18, 2013
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(Phys.org) —Olfactory sensory neurons – nerve cells in the nose – directly sense molecules that convey scent, then send the signals to the brain. Biologists have long wondered how it's possible for each nerve cell to ...
Cell & Microbiology
Mar 5, 2013
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The human nose has millions of olfactory neurons grouped into hundreds of different neuron types. Each of these neuron types expresses only one odorant receptor, and all neurons expressing the same odorant receptor plug into ...
Cell & Microbiology
Nov 14, 2012
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The first complete map of the ants' olfactory system has discovered that the eusocial insects have four to fives more odorant receptors—the special proteins that detect different odors—than other insects.
Plants & Animals
Sep 10, 2012
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(Phys.org) -- A University of California, Davis, discovery that male navel orangeworms respond more readily to artificial or "deceitful" female sex pheromones than to natural sex pheromones could lead to a better mating disruption ...
Plants & Animals
Jul 26, 2012
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(Phys.org) -- Max Planck scientists have found out that the olfactory system in hermit crabs is still underdeveloped in comparison to that of vinegar flies. While flies have a very sensitive sense of smell and are able to ...
Plants & Animals
Jul 4, 2012
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