Bill Nye explains Evolution

Just slightly longer
spawnflaggersays...

This is a good explanation... for kids. It's too bad it's a poor example from a scientific perspective. Lamarck and Darwin's observations (early 1800's) were not very rigorous.

In their article, "Winning by a Neck," zoologists Robert Simmons (Uppsala University) and Lue Scheepers (Ministry of Environment, Namibia) agree that the standard account "may be no more than a tall story". According to the competition hypothesis, giraffes use their long necks to advantage during dry seasons, when food is scarce; but, in fact, the opposite is observed in the field. "In the Serengeti," Simmons and Scheepers note, "giraffe spend almost all of the dry season feeding from low Grewia bushes, while only in the wet season do they turn to tall Acacia tortillis trees, when new leaves are ...plentiful ...and no competition is expected. This behavior is contrary to the prediction that giraffe should use their feeding height to advantage at times of food scarcity". Moreover, they report, "females spend over 50% of their time feeding with their necks horizontal [a behavior so common it is used to determine the sex of animals at a distance]" and "both sexes feed faster and most often with their necks bent". These observations, they conclude, suggest "that long necks did not evolve specifically for feeding at higher levels." (from http://www.arn.org/docs/odesign/od181/ls181.htm)

"but if we continue to illustrate our conviction with an indefensible, unsupported, entirely speculative and basically rather silly story, then we are clothing a thing of beauty in rags and we should be ashamed, `for the apparel oft proclaims the man.'" (from "The Tallest Tale" by Stephen Jay Gould, Natural History, May 1996)

thatguyjamessays...

This seems to have been edited...

Just 'slightly' edited

for people with Attention Deficit Disorder

for people with Attention Deficit Disorder

This seems to have been edited for people with Attention Deficit Disorder

carrotsays...

>> ^thatguyjames:
This seems to have been edited...
Just 'slightly' edited
for people with Attention Deficit Disorder
for people with Attention Deficit Disorder
This seems to have been edited for people with Attention Deficit Disorder


And for people with amnesia, apparently?

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