colourations

The butterfly's bright colouration warns predators that it is poisonous.

这只蝴蝶鲜艳的色彩警示捕食者它有毒。

Researchers study the colouration of male birds to learn how they attract females.

研究人员研究雄鸟的色彩以了解它们如何吸引雌鸟。

The frog's green colouration makes it almost invisible in the moss.

这只青蛙的绿色体色使其在苔藓中几乎不可见。