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All Articles Tagged As: senses
Humans have the same receptors for detecting odors related to sex as do other apes and primates. But each species uses them in different ways, stemming from the way the genes for these receptors have evolved over time, according to Duke University researchers.
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 | Echolocation may have evolved more than once in bats ...> Full Article |
 | Among humans, making yourself smell more alluring than you really are is a fairly harmless, socially accepted habit that maintains a complete perfume industry. However, it is a matter of life and death for caterpillars of large blue butterflies that dupe ant workers into believing them to be one of the ant's own larvae. ...> Full Article |
 | The skin is the largest human sensory organ. What is not fully understood is how the skin responds to stimuli, especially to pain. Research by Nevena Milenkovic, Christina Frahm, Professor Gary Lewin and Dr. Alistair Garratt of the Max Delbrück Center for Molecular Medicine (MDC) in Berlin-Buch, Germany, has now demonstrated that Stem Cell Factor (SCF) and its receptor, c-Kit, play a central role in tuning the responsiveness of sensory neurons to heat stimuli. "As yet, c-Kit is the first example of a single gene being required for normal noxious heat sensitivity of C-fibers," according to the neurobiologists. Their paper has just been published online in Neuron *. ...> Full Article |
 | A type of beetle that lives its entire life burrowing through stored grain has been found to lack full colour vision, and what's more the vision it does have breaks the rules. Most other insects have trichromatic vision -- they are sensitive to ultraviolet, blue and long wavelength light. Scientists now reveal that this beetle has lost photoreceptors that are sensitive to blue wavelengths. ...> Full Article |
 | Finding enhances understanding of circadian rhythms ...> Full Article |
Some people are oblivious to the odor in the locker room after a game, while others wrinkle their noses at the slightest whiff of sweat. Research by Prof.
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A team of researchers have identified an important gene responsible for binocular vision.
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 | 'Opsin' genes found in aquatic relatives of corals, jellyfish, sea anemones ...> Full Article |
To many, urine smells like urine and vanilla smells like vanilla. But androstenone, a derivative of testosterone that is a potent ingredient in male body odor, can smell like either - depending on your genes. While many people ascribe a foul odor to androstenone, usually that of stale urine or strong sweat, others find the scent sweet and pleasant. Still others cannot smell it at all.
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 | Behind the sailor's lore of fearsome battles between sperm whale and giant squid lies a deep question of evolution: How did these leviathans develop the underwater sonar needed to chase and catch squid in the inky depths? ...> Full Article |
 | Fruit flies like a little seltzer in their drinks, according to researchers at the University of California, Berkeley. ...> Full Article |
Scientists at the Monell Chemical Senses Center report that genes play a large role in determining individual differences in sour taste perception. The findings may help researchers identify the still-elusive taste receptor that detects sourness in foods and beverages, just as recent gene studies helped uncover receptors for sweet and bitter taste.
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