News tagged with evolutionary events
Probing question: What is a molecular clock?
Biology /
Nov 20, 2008 |
4.3 / 5 (7) |
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It doesn't tick, it doesn't have hands, and it doesn't tell you what time of day it is. But a molecular clock does tell time -- on an epoch scale. The molecular clock, explained S. Blair Hedges, is a tool ...
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Scent signals stop incest in lemurs
5 hours ago |
not rated yet |
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Chemical identifiers secreted from the genital glands of lemurs, allow them to avoid incest and also to engage in nepotism. Researchers writing in the open access journal BMC Evolutionary Biology have identified the smells ...
A Superbright Supernova That’s the First of Its Kind
6 hours ago |
4.8 / 5 (9) |
1
(PhysOrg.com) -- An extraordinarily bright, extraordinarily long-lasting supernova named SN 2007bi, snagged in a search by a robotic telescope, turns out to be the first example of the kind of stars that first ...
Patients can safely skip pre-surgery stress tests and beta blockers
7 hours ago |
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Physicians should "throttle back" from routinely ordering stress tests and prescribing beta blockers to patients before non-cardiac surgeries, according to a report by the University of Michigan released online this week.
Antarctica served as climatic refuge in Earth's greatest extinction event
Space & Earth / Earth Sciences
7 hours ago |
4.5 / 5 (2) |
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A new fossil species suggests that some land animals may have survived the end-Permian extinction by living in cooler climates in Antarctica. Researchers have identified a distant relative of mammals that apparently survived ...
Male and female shopping strategies show evolution at work in the mall
Other Sciences / Social Sciences
8 hours ago |
4 / 5 (8) |
1
Male and female shopping styles are in our genes---and we can look to evolution for the reason. Daniel Kruger, research faculty at the University of Michigan School of Public Health, says it's perfectly natural that men often ...
A little magic provides an atomic-level look at bone
Chemistry / Analytical Chemistry
9 hours ago |
5 / 5 (1) |
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(PhysOrg.com) -- A new study using solid-state NMR spectroscopy to analyze intact bone paves the way for atomic-level explorations of how disease and aging affect bone. The research by scientists at the University of Michigan ...
Why we outlive our ape ancestors
10 hours ago |
4 / 5 (4) |
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In spite of their genetic similarity to humans, chimpanzees and great apes have maximum lifespans that rarely exceed 50 years. The difference, explains USC Davis School of Gerontology Professor Caleb Finch, is that as humans ...
Soy peptide lunasin has anti-cancer, anti-inflammatory properties
10 hours ago |
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Two new University of Illinois studies report that lunasin, a soy peptide often discarded in the waste streams of soy-processing plants, may have important health benefits that include fighting leukemia and blocking the inflammation ...
Rover Spirit: Another Stall of Right-Rear Wheel Ends Drive
Space & Earth / Space Exploration
10 hours ago |
2.5 / 5 (2) |
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(PhysOrg.com) -- Spirit's right-rear wheel stalled again on Sol 2099 (Nov. 28, 2009) during the first step of a two-step extrication maneuver.
Balancing protein intake, not cutting calories, may be key to long life
11 hours ago |
4.8 / 5 (6) |
3
Getting the correct balance of proteins in our diet may be more important for healthy ageing than reducing calories, new research funded by the Wellcome Trust and Research into Ageing suggests.
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