Swiss Army knife of the Hawaiian Islands—how an endangered bird drills into trees to find food
There are no woodpeckers on the Hawaiian Islands, but a little yellow bird called the 'akiapōlāʻau (Ah-key-ah-pole-ah-ow) has evolved an unusual beak to drill into branches to find food.
原文出处：Phys.org （本文由聚合程序自动采集，版权归原作者所有）