Published April 14, 2011
Some dinosaurs didn't go to sleep when the sun went down. Like many living animals, some paleo-beasts stayed awake or woke up to forage or begin the hunt for prey.
Published April 05, 2011
Like his body, a man's skull and its features are generally larger than a woman's. An analysis of Spanish skulls spanning approximately 300 years showed, however, that the difference between the sexes' cranial features shrank over time.
Published March 28, 2011
A 2,500-year-old human skull uncovered in England was less of a surprise than what was in it: the brain. The discovery of the yellowish, crinkly, shrunken brain prompted questions about how such a fragile organ could have survived so long and how frequently this strange type of preservation occurs.
Published March 21, 2011
An old experiment, rediscovered after more than 50 years, may demonstrate how volcanoes – and possibly chemical reactions far from primitive Earth in outer space – played a role in creating the first amino acids, the building blocks of life.
Published December 14, 2010
A controversial plan to irradiate squirrel monkeys to better understand the risks of long-duration spaceflight on humans appears to have been scrapped. NASA ordered the project removed from consideration for lab time -- although the space agency stopped short of saying the study had been canceled.
Published December 06, 2010
There is a place for magic in science. Five years ago, on a trip to Las Vegas, neuroscientists Stephen Macknik and Susana Martinez-Conde realized that a partnership was in order with a profession that has an older and more intuitive understanding of how the human brain works. Magicians, it seems, have an advantage over neuroscientists.
Published November 24, 2010
Turkey now comes with a new set of instructions. Much of the turkey's genome has been sequenced, and -- turkey eaters take note -- this work could lead to meatier, healthier birds, according to the researchers.
Published August 30, 2010
The fluid that spews out the top of a dolphin or whale's head when it exhales can provide scientists with valuable genetic information, giving them an alternative to shooting the animals with a retractable dart to collect a small tissue sample, new research suggests.
Published August 23, 2010
Weight gain is not just the result of an overly rich diet or genes that predispose someone to store fat, mounting research suggests. Rather, studies implicate a third, and more complex, factor – the interaction between our genes and what we eat.
Published July 20, 2010
Michelangelo's depiction of God's throat in one panel of his Sistine Chapel fresco is awkward -- odd for an artist so devoted to the study of anatomy. Now researchers have a theory to explain why: Michelangelo embedded an image of a human brain stem in God’s throat.