6,698 results
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From the August 22, 1931, issue
THE GIRL ON THE COVER Her name is Janet Penserosa. She is about four years old and her home is at the New York Zoological Park. And now she can claim the distinction of being the first female gorilla to survive in Gothams animal center. Not only that, but she is probably the only gorilla […]
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From the December 28, 1929, issue
YOUTH AND THE SEA “Captain Sylvia,” aged 6 weeks, and her mother, Mrs. J.E. Williamson upon the cover of this week’s issue look at a strange world full of fishes, corals, sharks, morays, and other denizens of the deep. The youthful scientist, symbolic of science itself and its aspirations, was a member of the Field […]
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Bacteria live inside bacteria in mealybug
In a new twist on how life forms can exploit each other and with implications for how complex cells originated, scientists have discovered one bacterium living inside another.
- Health & Medicine
Genomes of dangerous bacteria exposed
Researchers unveiled the genomes of bacteria that cause severe food poisoning, typhoid fever, and the plague that devastated the Middle Ages.
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18963
I was distressed to read that Science News thinks there are no steroid hormone receptors in insects. Granted, their reproduction is not regulated by steroids, but ecdysone, the molting hormone, is certainly a steroid. There is some evidence that juvenile hormone, the hormone that regulates development and sometimes reproduction, acts through a steroidlike-receptor pathway. Other […]
- Health & Medicine
Cancer drugs may thwart Huntington’s
Drugs developed to fight cancer could also be effective against Huntington's disease and several related neurodegenerative conditions.
- Ecosystems
Deprived of Darkness
From anecdotal reports of little-studied phenomena, researchers suspect that artificial night lighting disrupts the physiology and behavior of nocturnal animals.
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A More Perfect Union
Forsaking life in the outside world, endosymbiotic bacteria of some insects traded freedom and nutrients for life inside a cell.
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18932
Please explain a curious statement in “A more perfect union.” The article paraphrases Jonas Sandstrom of Uppsala University in Sweden as suggesting that an “endosymbiont’s isolation may be a one-way ticket to extinction. Once the bacterium loses genes . . . it has no way of getting them back. It can’t, therefore, evolve away from […]
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Sitting around? (Chomp!) Back to work!
An analysis of nestmates biting each other in a wasp colony suggests that the nips and outright chomps help organize work flow in the nest.
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Obscure brain chemicals draw new attention
Long-dismissed brain chemicals called trace amines have receptors on human cells and may play a role in depression and schizophrenia.
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Brain scans reveal human pheromones
Male and female brains react differently to two putative pheromones, compounds related to the hormones testosterone and estrogen.
