News tagged with cactus


Magnetic Cactus Experimentally Demonstrates Mathematical Plant Patterns

Magnetic Cactus Experimentally Demonstrates Mathematical Plant Patterns

Physics / General Physics

created May 20, 2009 | popularity 4.8 / 5 (20) | comments 0

(PhysOrg.com) -- One of humanity’s earliest mathematical inquiries might have involved the geometric patterns in plants. The arrangement of leaves on a branch, seeds in a sunflower, and spines on a cactus ...





Search results for cactus


Arizona cactus is threatened

Biology /

created Jul 11, 2006 | popularity 2.3 / 5 (4) | comments 0

More than 170 new homes are built in the Phoenix and Tucson areas each day and reportedly means many cactus species are being threatened.


Cactus

How Did Cactuses Evolve

Biology /

created May 15, 2006 | popularity 4.1 / 5 (17) | comments 0

In a groundbreaking new study in the June issue of American Naturalist, Erika J. Edwards (Yale University and University of California, Santa Barbara) and Michael J. Donoghue (Yale University) explore how leafy, ...


Which came first, the moth or the cactus?

Biology /

created Aug 13, 2007 | popularity 3.3 / 5 (3) | comments 0

It's not a good idea to put all your eggs in one basket… unless you're a senita moth.


Malaria immunity trigger found for multiple mosquito species

Medicine & Health / Diseases

created Mar 13, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Researchers at the Johns Hopkins Bloomberg School of Public Health have for the first time identified a molecular pathway that triggers an immune response in multiple mosquito species capable of stopping ...


Insect release proposed to control exotic strawberry guava

Space & Earth / Environment

created May 22, 2008 | popularity 4.8 / 5 (4) | comments 2

U.S. Forest Service scientists with the Institute of Pacific Islands Forestry have submitted a proposal to release a Brazilian insect to control the spread of strawberry guava, a South American tree that has invaded and degraded ...


Leucaena, a Mexican tree that produces edible seeds.

Rubbish heaps helped crops evolve

Biology /

created Aug 20, 2007 | popularity 3.5 / 5 (4) | comments 0

Rubbish heaps and backyard gardens helped early farmers domesticate crop plants, according to Oxford University scientists. Their research confirms that seeds and fruits gathered in the wild and then discarded ...


Diabetics on high-fiber diets might need extra calcium, report UT Southwestern researchers

Diabetics on high-fiber diets might need extra calcium

Medicine & Health / Diseases

created Mar 24, 2009 | popularity not rated yet | comments 0

The amount of calcium your body absorbs might depend, in part, on the amount of dietary fiber you consume.


Scores of teams applied to compete in this year's decathlon, but only 20 were accepted

US Solar Decathlon seeks best sun-powered homes

Technology / Energy

created Oct 08, 2009 | popularity 1 / 5 (1) | comments 0

For the past week on the National Mall in Washington, international crews have been busy putting up structures for an event showcasing a radiant source of energy that some once revered as a god.


Studying Genes of Desert Fruit Flies

Studying Genes of Desert Fruit Flies

Biology /

created Jun 19, 2007 | popularity 2.7 / 5 (3) | comments 0

Researchers at the University of Arkansas and University of Nevada-Las Vegas will study the genetics of fruit flies in desert habitats to determine how they developed the ability to survive under stressful ...


Researchers Discover the 'Big Sperm Paradox'

Researchers Discover the 'Big Sperm Paradox'

Biology /

created Jun 08, 2006 | popularity 4.2 / 5 (48) | comments 0

Syracuse University Ph.D. student Adam Bjork is a man on a mission: to unlock the mysteries of cryptic female choice. He’s not studying psychology or trying to get a date—he’s a student of biology in SU’s College ...



List of search results for cactus