Friday, May 29, 2015
Thursday, May 28, 2015
Evidence of interpersonal violence has been documented previously in Pleistocene members of the genus Homo, but only very rarely has this been posited as the possible manner of death. Here we report the earliest evidence of lethal interpersonal violence in the hominin fossil record. Cranium 17 recovered from the Sima de los Huesos Middle Pleistocene site shows two clear perimortem depression fractures on the frontal bone, interpreted as being produced by two episodes of localized blunt force trauma. The type of injuries, their location, the strong similarity of the fractures in shape and size, and the different orientations and implied trajectories of the two fractures suggest they were produced with the same object in face-to-face interpersonal conflict. Given that either of the two traumatic events was likely lethal, the presence of multiple blows implies an intention to kill. This finding shows that the lethal interpersonal violence is an ancient human behavior and has important implications for the accumulation of bodies at the site, supporting an anthropic origin. PLOS
Fig 1. Stratigraphy of the Sima de los Huesos site (modified from Arsuaga et al. ).
The hominin bones were recovered in Lithostratigraphic Unit 6 (LU-6) dated to c. 430ka . This unit is composed of pure red clays, filtering into the conduit system from overlying soils with little or no lateral transport, and very low velocity of sedimentation (decantation by dripping water) . The figure also shows a detailed image of Cr-17 during its excavation at the site. Note the pure red clay that covers the cranial bones (partially cleaned in situ to enhance visualization) and the typical in situ postmortem (fossil diagenetic) fractures of the cranial vault. Photo credit: Javier Trueba (Madrid Scientific Films).
The skull in question was found at a site in Spain called Sima de los Huesos, or the Pit of the Bones, and it contained remains of 28 individuals. Quam said their presence there was intentional. "The only explanation that we have that can not be rejected is the idea that the human bodies arrived at this place by other humans," Quam told NPR. npr
Sushi entrepreneur Peter Yung makes an Insectopia Roll at the Future Food Salon in Austin, Texas, in February 2014. A British researcher writes that chefs and others must "make insect dishes appeal as food, not just a way to save the planet."
" 'A below-normal season doesn't mean we're off the hook. As we've seen before, below-normal seasons can still produce catastrophic impacts to communities," said NOAA Administrator Kathryn Sullivan, Ph.D., referring to the 1992 season in which only seven named storms formed, yet the first was Andrew – a Category 5 Major Hurricane that devastated South Florida."
BTW- hurricane season starts June 1st!
Wednesday, May 27, 2015
Friday, May 22, 2015
The scientists aboard found more than 35,000 different kinds of organisms — many of them previously unknown to science. Their work fills five papers in the journalScience. Journal editor Marcia McNutt says it's time the world took notice of what wecan't see in the ocean.
Wednesday, May 20, 2015
Some scientists have speculated that snakes first evolved in water and that their long, slithery bodies were streamlined for swimming. But a new analysis suggests that the most recent common ancestor of all snakes actually lived on land.
Thursday, May 14, 2015
Explore BBC Earth's unique interactive, personalised just to you.
Find out how, since the date of your birth, your life has progressed; including how many times your heart has beaten, and how far you have travelled through space.
Investigate how the world around you has changed since you've been alive; from the amount the sea has risen, and the tectonic plates have moved, to the number of earthquakes and volcanoes that have erupted.
Grasp the impact we've had on the planet in your lifetime; from how much fuel and food we've used to the species we've discovered and endangered.
And see how the BBC was there with you, capturing some of the most amazing wonders of the natural world. bbc
my heart has beaten 1 billion times in my lifetime.
a fly my age would have a family of 10,544 generations by now.
on mercury i am 116.
there have been 131 major eruptions since i was born.
The Swedish Peace and Arbitration Society (SPAS) is to deal with encroaching Russian submarines in Swedish waters with a device emitting anti-homophobia Morse code.
The device – officially titled The Singing Sailor Underwater Defence System, but nicknamed the “gay sailor” – is a “subsurface sonar system”, which sends out the message: “This way if you are gay” in an attempt to deter apparently homophobic Russians.
Russia has come under fire since the Putin administration introduced homophobic laws in 2013 banning “propaganda of nontraditional sexual relations”, in a climate of increasing intolerance towards its LGBT population.
The design of the device features a neon, flashing sign of a dancing sailor, naked but for a cap and small white briefs, surrounded by hearts.
“Welcome to Sweden: Gay since 1944” is written in English and Russian, in a reference to the year of decriminalisation of homosexuality in the Scandinavian nation.
Sweden has cut its military budget in recent years but announced in March it would increase spending, as a result of alleged Cold War-style Russian aggression.
An operation involving helicopters, minesweepers and 200 troops was launched last October to search for a suspected rogue Russian submarine in Swedish waters.