H********g
发帖数: 43926 | 1 【 以下文字转载自 Military 讨论区 】
发信人: Mitobbs (静如处子), 信区: Military
标 题: Re: 中国人喜欢存钱可能和延迟享受基因有关
发信站: BBS 未名空间站 (Sun May 10 22:03:45 2020, 美东)
对就是这种鸟
Clark's Nutcrackers have excellent spatial memory, which enables them to
cache up to 33,000 seeds in the fall, and then locate a large percentage of
those during the winter. Caches are generally buried in the soil on exposed
slopes and can often find their caches up to nine months later. Not being
100 percent efficient at finding their caches functions as seed dispersal.
When preparing to store seeds, this bird can store as many as 90 seeds in a
pouch behind its tongue. This large seed cache allows the Clark's nutcracker
to live in high elevations year round. |
|
