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发帖数: 43926 | 1 https://www.ucdavis.edu/news/why-pandas-are-black-and-white/
The scientists suggest that this dual coloration stems from its poor diet of
bamboo and inability to digest a broader variety of plants. This means
pandas can never store enough fat to go dormant during the winter, as do
some bears. So it has to be active year-round, traveling across long
distances and habitat types that range from snowy mountains to tropical
forests.
The markings on the panda's head, however, are not used to hide from
predators, but rather to communicate. Dark ears may help convey a sense of
ferocity, a warning to predators. Their dark eye patches may help them
recognize each other or signal aggression toward panda competitors.
“This really was a Herculean effort by our team, finding and scoring
thousands of images and scoring more than 10 areas per picture from over 20
possible colors,” said co-author Ted Stankowich, an assistant professor at
CSU Long Beach. “Sometimes it takes hundreds of hours of hard work to
answer what seems like the simplest of questions: Why is the panda black and
white?”
福布斯上也有
https://www.forbes.com/sites/grrlscientist/2017/03/08/why-are-giant-pandas-
black-and-white/#657e2861657e |
