Bird eggs laid in cold climates are darker, which may keep eggs warm
A global survey of bird egg color reveals a simple trend: the colder the climate, the darker the egg
Bird eggs come in a wide variety of shapes, sizes and colors. A new global study suggests that northern birds in colder climates tend to have darker eggs.
Frans Lanting/MINT Images/Science Source
This article is only available to Science News subscribers.
Subscribers, enter your e-mail address to access our archives.
