[Interceptor]
Frigate bird lives in the tropics of the Pacific Ocean.
In the breeding season, the male bird inflates a red throat pouch
and shakes its wings to appeal to the female bird flying in the
sky.
Recently a new type of bird has appeared that has a mirror in the
center of each wing with which it reflects the sun beam to catch
eye of the female. Also they are fond of proudly checking the size
and shape of their throat pouches in the mirrors.
動物進化ファイル
