Human brains pay a price for being big August 05, 2008 | User rating: 4.4 / 5 after 30 vote(s)
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Metabolic changes responsible for the evolution of our unique cognitive abilities indicate that the brain may have been pushed to the limit of its capabilities. Research published today in BioMed Central's open access journal ... | |
 Pheromones enhance sex, slow aging -- in worms 4 hours ago | User rating: not shown ( 3 vote(s) ) | No comments yet
(PhysOrg.com) -- People will pay big bucks for pills that promise to enhance sex or slow aging. Now, a Cornell researcher and colleagues have uncovered a class of small molecules in tiny worms that not only ... | |
A positive-feedback system ensures that cells divide 4 hours ago | User rating: not shown ( 1 vote(s) ) | No comments yet
(PhysOrg.com) -- In the life of every cell, there’s a point of no return. Once it enters the cell cycle and passes a checkpoint known as “Start,” a cell will follow the steps it needs to divide — no matter what changes might ... | |
Putting microRNAs on the stem cell map 4 hours ago | User rating: not rated yet | No comments yet
Embryonic stem cells are always facing a choice—either to self-renew or begin morphing into another type of cell altogether. It's a tricky choice, governed by complex gene regulatory circuitry driven by a handful of key regulators ... | |
Pacific shellfish ready to invade Atlantic 5 hours ago | User rating: not rated yet | No comments yet
As the Arctic Ocean warms this century, shellfish, snails and other animals from the Pacific Ocean will resume an invasion of the northern Atlantic that was interrupted by cooling conditions three million years ago, predict ... | |
A gene for sexual switching in melons provides clues to the evolution of sex 5 hours ago | User rating: not shown ( 1 vote(s) ) | No comments yet
A newly discovered function for a hormone in melons suggests it plays a role in how sexual systems evolve in plants. The study, conducted by French and American scientists, appears in the latest issue of the journal Science. | |
Complete Neandertal mitochondrial genome sequenced from 38,000-year-old bone 5 hours ago | User rating: 4.9 / 5 after 7 vote(s)
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A study reported in the August 8th issue of the journal Cell, a Cell Press publication, reveals the complete mitochondrial genome of a 38,000-year-old Neandertal. The findings open a window into the Neandertals' past ... | |
 119 illegal African clawed frogs seized in Nevada 14 hours ago | User rating: not shown ( 2 vote(s) ) | No comments yet
(AP) -- State wildlife officials raided three residences in the Reno area where they seized more than 100 African clawed frogs, which they say are prohibited because they can pose a serious danger to native ... | |
GIANT-Coli: A novel method to quicken discovery of gene function 14 hours ago | User rating: not shown ( 3 vote(s) ) | No comments yet
Think researchers know all there is to know about Escherichia coli, commonly known as E. coli? Think again. "E. coli has more than four thousand genes, and the functions of one-fourth of these remain unknown," says Dr. Deborah ... | |
Scripps research team unravels new cellular repair mechanism August 06, 2008 | User rating: not shown ( 4 vote(s) ) | User comments: 1
A Scripps Research team has unraveled a new biochemical pathway that triggers a critical repair response to correct errors in the DNA replication process that could otherwise lead to harmful or fatal mutations in cells. Though ... | |
 Carbon dioxide poses risk to marine life survival August 06, 2008 | User rating: not shown ( 1 vote(s) ) | No comments yet
(PhysOrg.com) -- Climate change and the subsequent acidification of the world's oceans will significantly reduce the successful fertilisation of certain marine species by the year 2100, an international team ... | |
Humans' response to risk can be unnecessarily dangerous, study August 06, 2008 | User rating: 3.6 / 5 after 14 vote(s)
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The traffic light ahead of you is turning yellow. Do you gun the engine and speed through the intersection, trusting that others will wait for their green, or do you slow down and wait your turn? | |
Scientists a step closer to producing fuel from bacteria August 06, 2008 | User rating: 3.4 / 5 after 11 vote(s)
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Scientists at the University of Sheffield have shown how bacteria could be used as a future fuel. The research, published in the journal Bioinformatics, could have significant implications for the environment and the ... | |
Tuning in to a new language on the fly: Effects of context and seasonality on songbird brain August 06, 2008 | User rating: not shown ( 3 vote(s) ) | No comments yet
Research conducted at Rutgers University has shown that exposure to a changed acoustic and social environment can rewire the way the brain processes sounds. Beginning in the cochlea of the inner ear, nerve cells of the auditory ... | |
 Spiders Who Eat Together, Stay Together August 05, 2008 | User rating: 4.4 / 5 after 7 vote(s)
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(PhysOrg.com) -- The ability to work together and capture larger prey has allowed social spiders to stretch the laws of nature and reach enormous colony sizes, UBC zoologists have found. | |
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