And by examining the egg colors of 634 species from around the world, Hanley and his colleagues found a curious pattern.

在研究了全球各地634种鸟蛋之后，汉利及其同事发现了一个不寻常的模式。

The details, and a world map of egg colors, are in the journal Nature Ecology and Evolution.

详细信息和鸡蛋颜色的世界地图发表在《自然生态学与进化》杂志上。