Uncategorized
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Quirky Cardiology: Crocs’ hearts may aid their digestion
The crocodile's ability to direct oxygen-depleted blood to its stomach may be instrumental in digesting large, bony meals.
- Chemistry
Back on the Table? Element 118 is served up again
A team of nuclear chemists from the United States and Russia have announced the brief reappearance of element 118.
- Planetary Science
A sunrise view of Mars
The first high-resolution images sent by the Mars Reconnaissance Orbiter support the notion that water once flowed across much of the Red Planet.
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Horns vs. Sperm: Male beetles on tight equipment budget
A group of dung beetle species that sprout elaborate horns often face trade-offs between horn and testes sizes.
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Autism’s DNA Trail: Gene variant tied to developmental disorder
A study of more than 700 families with children diagnosed with autism has identified a gene variant, already known to affect brain formation, that boosts a person's chances of developing this severe disorder.
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I am a retired high school mathematics teacher who has quilted mathematical ideas for over 20 years. Currently, I am working on a quilt called Pascal’s Pumpkin. I was totally excited by this article and began to think about quilting some spidrons! Elaine EllisonWest Lafayette, Ind.
- Math
Swirling Seas, Crystal Balls
A remarkable geometric shape made up of a sequence of triangles leads to a host of intriguing forms and mobile structures.
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Air’s oxygen content constrains insect growth
The size to which insects grow is limited by their need to route oxygen to tissues in their legs.
- Earth
Waters near croplands impair frogs’ immunity
Pesticide-containing waters leave frogs more susceptible to fungal infections than pristine environments do.
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Cloning is most efficient using non–stem cells
Fully matured cells can be used to clone animals.
- Animals
Tropical diversity came with time
Species in richly diverse tropics don't evolve faster than do species in temperate zones.
- Health & Medicine
Antiviral drug may limit herpes spread
In people with genital herpes, the drug famciclovir sharply reduces virus shedding from the genitalia.
