Archive for July 23rd, 2008

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Homo sapiens as Long-Distance Runners

Wednesday, July 23rd, 2008

As a child, I was a master at chasing the ice cream man. I remember one time when that big white truck got a good four-block lead on me before I leapt outside in a pavlovian response to its musical tunes (I still salivate when I hear them). That time, the ice cream man let me chase him over a mile, clear into another neighborhood, before stopping to sell me $0.35 worth of sweet tarts. Although I was too young to care at the time, as an adult I look back on that experience and realize how degrading it was.

But no longer! The 2006 Discover article Born To Run explores the hypothesis that human beings evolved to be long-distance runners, allowing us to chase down big game, which could only flee across short distances at high bursts of speed.

I wasn’t some addict kid needing a sugar-fix, chasing after the ice cream truck!!! I was a lean, mean predator, following my primal instincts and running down my prey!!!

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Science Etcetera, Mercuryday 20080723

Wednesday, July 23rd, 2008
  • Human speech originated with singing fish.

  • midshipman fish singing to attract a mate

    midshipman fish singing to attract a mate
    Credit: Nicolle Rager Fuller, National Science Foundation
  • Radiohead video uses no cameras, just 3-D Plotting for a very stunning effect (HT oranchak).
  • Shucks. Oscar Pistorius, amputee sprinter with cyborg legs failed to qualify for the Olympic Games, possibly because he’s spent the last six months in legal battles rather than training.
  • Japanese Emperor Akihito has published dozens of scientific papers and is now studying the feeding habits of wilk tanuki (”racoon dogs”). Go Emperor! It’s nice to see not all Monarchy are social parasites.
  • Water Fleas mail their eggs on other insects to populate other ponds.
  • Pretty photos of Echus Chasma on Mars.

  • Echus Chasma

    Echus Chasma
    Credit: ESA
  • After a black and white felon were found to have the same DNA profile the FBI began working to block research into establishing what the actual chances are that DNA can give false positives.
  • Loud music in a bar makes you drink more.
  • In preparation for going online, the LHC is being lowered to a temperature of 1.9 Kelvin (-271C; -456F). Brrrrrr!!! I’m getting cold chills of excitement!
  • 96-Tentacled Octopus. ‘Nuff said.
  • MRI scans suggest children are hard-wired for empathy.
  • First test flight of the Ares 1 rocket, as envisioned in a NASA CGI video.