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[QUOTE]Originally posted by DD'eDeN: [QB] Interesting articles Mampires: mammal young and many AMHs adults are mammary parasites https://westhunt.wordpress.com/2012/10/23/mampires/ - - - TANN New species of fossil bird discovered in New Mexico Posted: 10 Jul 2017 05:30 AM PDT Bruce Museum Curator Dr. Daniel Ksepka has published a research paper in the Proceedings of the National Academy of Science announcing the discovery of a new species of fossil bird in New Mexico. Artist’s rendering of Tsidiiyazhi abini [Credit: Sean Murtha]The fossil is important because it is the *oldest tree-dwelling species among modern bird groups*. It lived just a few million years after the dinosaurs went extinct. Live-in grandparents helped human ancestors get a safer night's sleep - - - Sleep patterns of groups. live-in grandparents (or substitute dogs) & security Posted: 11 Jul 2017 07:00 AM PDT A sound night’s sleep grows more elusive as people get older. But what some call insomnia may actually be an age-old survival mechanism, researchers report. A Hadza man sleeps on the ground on an impala skin in northern Tanzania [Credit: David Samson]A study of modern hunter-gatherers in Tanzania finds that, for people who live in groups, differences in sleep patterns commonly associated with age help ensure that at least one... ... In between, they roused from slumber several times during the night, tossing and turning or getting up to smoke, tend to a crying baby, or relieve themselves before nodding off again. As a result, moments when everyone was out cold at once were rare. Out of more than 220 total hours of observation, the researchers were surprised to find *only 18 minutes when all adults were sound asleep simultaneously*. On average, more than a third of the group was alert, or dozing very lightly, at any given time. “And that’s just out of the healthy adults; it doesn’t include children, or people who were injured or sick,” said Samson, now an assistant professor of anthropology at the University of Toronto, Mississauga. Yet the participants didn’t complain of sleep problems, Samson said. The findings may help explain why Hadza generally don’t post sentinels to keep watch throughout the night -- they don’t need to, the researchers say. Their natural variation in sleep patterns, coupled with light or restless sleep in older adults, is enough to ensure that at least one person is on guard at all times. Note: Dome huts of woven branches & grass are derived from rainforest branches & broad leaf dome huts which evolved from domeshields which derived from ape bowl nests. Read more at https://archaeologynewsnetwork.blogspot.com/2017/07/live-in-grandparents-helped-human.html#CUfYiY6CxsjPY2hK.99 - - - Analyses of 40,000 year old ochre finds in Ethiopia's Porc-Epic Cave point to symbolic use Posted: 11 Jul 2017 12:00 PM PDT The EU-funded TRACSYMBOLS project, which closed in 2015, investigated archaeological sites in South Africa for early use of symbols by homo sapiens, examining painting kits, spear points, beads and *ostrich egg shell engravings* [DD: !hxaro]. They also studied the usage of the reddish iron-rich rock, ochre. And it was to ochre that members of the project team have more recently returned. View of Porc-Epic Cave [Credit: A. Herrero] - - - Lena River Siberia fish meal 9ka - harpoon, net floats of birch bark, preserved bones http://www.express.co.uk/news/world/828377/Mystery-uneaten-fish-supper-Stone-Age-unearthe-Siberia - - - Genetic kin of Barr-Epstein virus found in Mountain gorillas http://www.sci-news.com/biology/epstein-barr-like-virus-mountain-gorillas-05039.html - - - Giant conch shell trumpet - sound effects http://www.sciencemag.org/news/2017/07/conch-shell-trumpet-would-be-heard-far-and-wide-ancient-world Note: I found a giant conch at my swimming hole, might cook it up some day, or might let it go. - - - Vitamin D deficiency Vitamin D deficiency in expectant mothers during pregnancy has a negative effect on the social development and motor skills of pre-school age children, a new study in the British Journal of Nutrition reports. Examining data gathered from over 7,000 mother-child pairs, researchers from the University of Surrey, and the University of Bristol, discovered that pregnant women who were deficient in vitamin D (less than 50 nmol per litre in blood) were more likely to have children with low scores (bottom 25 percent) in pre-school development tests for gross and fine motor development at age 2½ years than children of vitamin D sufficient mothers. https://www.sciencedaily.com/releases/2017/07/170712074457.htm [/QB][/QUOTE]
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