The mere presence of a predator causes enough stress to kill a dragonfly, even when the predator cannot actually get at its prey to eat it, say biologists at the University of Toronto.
Published News » Science
Insects are scared to death of fish
Posted by Jenni (#2) 573 days ago (http://www.sciencedaily.com)Do bacteria age Biologists discover the answer follows simple economics
Posted by Jenni (#2) 573 days ago (http://www.sciencedaily.com)
When a bacterial cell divides into two daughter cells and those two cells divide into four more daughters, then 8, then 16 and so on, the result, biologists have long assumed, is an eternally youthful population of bacteria.
Babies show sense of fairness altruism as early as 15 months
Posted by Jenni (#2) 592 days ago (http://www.sciencedaily.com)
A new study presents the first evidence that a basic sense of fairness and altruism appears in infancy. Babies as young as 15 months perceived the difference between equal and unequal distribution of food, and their awareness of equal rations was linked to their willingness to share a toy.
Supersaturated water vapor in Martian atmosphere
Posted by Jenni (#2) 592 days ago (http://www.sciencedaily.com)
Analysis of data collected by the European Space Agency's Mars Express spacecraft leaves no room for doubt: the Martian atmosphere of contains water vapor in a supersaturated state.
Humans ‘are just modified fish’
Posted by Jenni (#2) 594 days ago (http://www.thehindu.com)
Humans are just modified fish, say scientists who claim to have discovered how the muscles controlling the pelvic fins of the marine species have paved the way for the evolution of back legs in higher animals.
Astronomers find elusive planets in decade-old Hubble data
Posted by Jenni (#2) 595 days ago (http://www.sciencedaily.com)
In a painstaking re-analysis of Hubble Space Telescope images from 1998, astronomers have found visual evidence for two extrasolar planets that went undetected back then.
Plants may have the genetic flexibility to respond to climate change
Posted by Jenni (#2) 595 days ago (http://www.sciencedaily.com)
Plants may have the genetic flexibility to respond to climate change. In experiments with the common European plant Arabidopsis thaliana, a team of researchers led by Brown University scientists learned that climate is the agent that determines the suite of genes that gives the plant the best chance of surviving and reproducing throughout its natural range.
Physics prize an unexpected but happy surprise for Schmidt
Posted by Jenni (#2) 597 days ago (http://www.thehindu.com)
It feels like when my children were born,” exclaimed Brian P. Schmidt, co-winner of this year’s Nobel Prize winner for Physics, soon after the Royal Swedish Academy of Sciences made the announcement in Stockholm on Tuesday.