Fast food may be the reason that city crows diving in dumpsters have higher cholesterol levels than their rural cousins.
This is the result of a study published in the magazine "The Condor" on Tuesday. The college in New York examined 140 California crows and found that the more urban the bird, the higher its cholesterol.
Next, Team New York-based crows fed McDonald's cheeseburgers and found that their cholesterol was higher than that of nearby winged peers defending themselves had.
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But the study says that it is not clear if cholesterol is causing damage to the crows.
Survival rates were lower for urban crows than for rural cholesterol was not the culprit, according to the study.
"Despite all the bad press results, cholesterol has benefits and many important functions," says Andrea Townsend, who led the research team. "It's an important part of our cell membranes and a component of some crucial hormones."
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She added, "We know that excessive cholesterol causes disease in humans, but we do not know which mirror is overly excessive in a wild bird." 39.
Jokka Jokimaki of the University of Lapland in Finland was surprised, according to New Scientist, that fast food crows could not harm.
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"There are probably several other factors that are more important to the crows, such as diseases and car accidents." 19659016]