3,878 results
- Agriculture
Frozen Assets
A U.S. gene bank has begun deep-freezing semen and other livestock 'seed' for possible future use in research or breeding.
- Animals
Fox Selection: Bottleneck survivors show surprising variety
Foxes native to a California island—famous for the least genetic diversity ever reported in a sexually reproducing animal—have some variation after all.
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Letting the Dog Genome Out: Poodle DNA compared with that of mice, people
Biologists have deciphered the DNA sequence of a poodle, an accomplishment that may help researchers study more than 300 human diseases that also affect dogs.
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19377
Of course animals think, I’d say. But you say, “Many [scientists] theorized that nonhuman animals react to their surroundings without actually thinking.” My observation over the decades has been that most humans do the same, most of the time. George BlenderSan Diego, Calif. You don’t need all the elaborate experiments described in the article. If […]
- Animals
Second bird genus shares dart-frog toxins
Researchers have found a second bird genus, also in New Guinea, that carries the same toxins as poison-dart frogs in Central and South America.
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Possible Worlds
A growing number of reports highlight imagination's pervasive influence on thinking, one example of which is the surprisingly large proportion of well-adjusted preschoolers who play with make-believe companions.
- Health & Medicine
Delaying Dementia
The limited success of attempts to treat Alzheimer's disease with several compounds that appear able to prevent the disorder suggests that the window for derailing the development of the illness may close years before cognitive decline becomes evident.
- Tech
Matrix Realized
Devices called brain-computer interfaces could give paralyzed patients the ability to flex mechanical limbs, steer a motorized wheelchair, or operate robots through sheer brainpower.
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Memory echoes in brain’s sensory terrain
The process of remembering an event reactivates brain regions that were involved in initially seeing or hearing the event.
- Animals
How blind mole rats find their way home
The blind mole rat is the first animal discovered to navigate by combining dead reckoning with a magnetic compass.
- Health & Medicine
Food Colorings
Many deeply hued plant pigments appear to offer health benefits, from fighting heart disease and obesity to preserving memory.
- Health & Medicine
Domestic Disease: Exotic pets bring pathogens home
The potentially deadly monkeypox virus has spread from Africa to people in several states via infected pet prairie dogs.
