News tagged with nocturnal mammals
When every photon counts
Apr 20, 2009 |
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The eyes of nocturnal mammals contain particularly large numbers of the highly light-sensitive rods, the photoreceptor type used for night vision. This allows the detection of light levels millions of times ...
Internal clocks keep all living things ticking -- even you
Biology /
Feb 08, 2009 |
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Like kids taking apart a fine Swiss watch, scientists are laboring to understand what makes the biological clock that's inside every living creature tick.
Search results for nocturnal mammals
A secret to night vision found in DNA's unconventional 'architecture'
Apr 16, 2009 |
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Researchers have discovered an important element for making night vision possible in nocturnal mammals: the DNA within the photoreceptor rod cells responsible for low light vision is packaged in a very unconventional way, ...
Does missing gene point to nocturnal existence for early mammals?
Biology /
Oct 11, 2006 |
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A gene that makes cells in the eye receptive to light is missing in humans, researchers have discovered. They say that whereas some animals like birds, fish and amphibians have two versions of this photoreceptor, mammals, ...
Wildlife Conservation Society supports world's first study of egg-laying mammal
Jun 09, 2009 |
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A Wildlife Conservation Society research intern working in the wilds of Papua New Guinea has successfully completed what many other field biologists considered "mission impossible"—the first study of a rare ...
New insight into primate eye evolution
May 18, 2009 |
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Researchers comparing the fetal development of the eye of the owl monkey with that of the capuchin monkey have found that only a minor difference in the timing of cell proliferation can explain the multiple anatomical differences ...
There is more to bats' vision than meets the eye
Jul 28, 2009 |
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The eyes of nocturnal bats possess two spectral cone photoreceptor types for daylight and colour vision. Reporting in the open-access, peer-reviewed journal PLoS ONE, scientists at the Max Planck Institute for Br ...
Nocturnal wind maximum mapped for first time
Space & Earth / Earth Sciences
Nov 05, 2009 |
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On beautiful, sunny days with quiet weather conditions a strong wind develops in the evening at a height of about 200 metres.
Do birds have a good sense of smell?
Biology /
Jul 16, 2008 |
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The sense of smell might indeed be as important to birds as it is to fish or even mammals. This is the main conclusion of a study by Silke Steiger (Max Planck Institute for Ornithology) and her colleagues. ...
Beneficial Nocturnal Insects Help Combat Pests in Texas
Oct 07, 2009 |
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(PhysOrg.com) -- Agricultural Research Service (ARS) scientists in Texas are staying up late to search for beneficial insects that feed on crops pest eggs at night.
Fruit Bats are not 'Blind as a Bat'
Biology /
Jun 12, 2007 |
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The retinas of most mammals contain two types of photoreceptor cells, the cones for daylight vision and colour vision, and the more sensitive rods for night vision. Nocturnal bats were traditionally believed ...
The aye-ayes have it: The preservation of color vision in a creature of the night
Biology /
Sep 04, 2007 |
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A quest to gain a more complete picture of color vision evolution has led Biodesign Institute researcher Brian Verrelli to an up-close, genetic encounter with one of the world’s most rare and bizarre-looking primates.
List of search results for nocturnal mammals
