New study reveals hidden neotropical diversity 11 hours ago | User rating: not shown ( 2 vote(s) ) | No comments yet
Evidence of physically similar species hidden within plant tissues suggest that diversity of neotropical herbivorous insects may not simply be a function of plant architecture, but may also reflect the great age and area ... | |
Small primate ancestors had a leg up 11 hours ago | User rating: 4.2 / 5 after 5 vote(s)
| User comments: 1
Smaller primates expend no more energy climbing than they do walking, Duke University researchers have found. This surprising discovery may explain the evolutionary edge that encouraged the tiny ancestors of modern humans, ... | |
An ancient protein balances gene activity and silences foreign DNA in bacteria 11 hours ago | User rating: not shown ( 3 vote(s) ) | No comments yet
Compared to humans, bacteria have a much tidier genome. The tiny microorganisms pack their genes closely together, and don’t carry around a lot of extraneous DNA, so-called junk DNA that fills in the gaps between genes. Some ... | |
Larger horns a gamble for young Soay sheep 13 hours ago | User rating: not shown ( 1 vote(s) ) | No comments yet
When it comes to winning mates, larger horns are an asset for male Soay sheep. But those that grow them may be putting their young lives on the line, according to a study published online on May 15th in Current Biology. | |
Researchers document rapid, dramatic 'reverse evolution' in the threespine stickleback fish 13 hours ago | User rating: 4.6 / 5 after 5 vote(s)
| No comments yet
Evolution is supposed to inch forward over eons, but sometimes, at least in the case of a little fish called the threespine stickleback, the process can go in relative warp-speed reverse, according to a study led by researchers ... | |
Immune cells kill foes by disrupting mitochondria 2 ways 13 hours ago | User rating: not shown ( 2 vote(s) ) | No comments yet
When killer T cells of the immune system encounter virus-infected or cancer cells, they unload a lethal mix of toxic proteins that trigger the target cells to self-destruct. A new study shows T cells can initiate cellular ... | |
Geneticists trace the evolution of St. Louis encephalitis 14 hours ago | User rating: not shown ( 3 vote(s) ) | No comments yet
Before West Nile virus arrived in this country, we had (and still have) a home-grown relative of this pathogen. An epidemic of unknown origin exploded around St. Louis, Missouri in the autumn of 1933, a disease that is now ... | |
Sea lions likely died from the heat 19 hours ago | User rating: not shown ( 4 vote(s) ) | User comments: 2
(AP) -- The deaths of six sea lions found in traps on the Columbia River earlier this month were likely caused by the heat, and not by gunshots as officials first suspected, the National Marine Fisheries Service said. | |
 Embryonic pathway delivers stem cell traits 13 hours ago | User rating: not shown ( 3 vote(s) ) | No comments yet
Studies of how cancer cells spread have led to a surprising discovery about the creation of cells with adult stem cell characteristics, offering potentially major implications for regenerative medicine and ... | |
Plant biologists discover unexpected proteins affecting small RNAs 13 hours ago | User rating: not shown ( 2 vote(s) ) | No comments yet
Now that high school biology students can recite that genes are made of DNA, which is transcribed into messenger RNA (mRNA), which is then translated into protein, along comes a new class of molecules, sending students—and ... | |
 Disgraced expert seeks funding for pet cloning firm: scientist 17 hours ago | User rating: not shown ( 2 vote(s) ) | No comments yet
South Korea's disgraced cloning expert Hwang Woo-Suk is seeking foreign investors for his new pet cloning business, a scientist close to him said Thursday. | |
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