Zebra finches sing to eggs to prepare babies for global warming

Zebra finches program their offspring to prepare for global warming by singing to eggs before they hatch. In especially hot areas, finch parents make a special call to incubating eggs, basically telling them it’s really hot outside and they better not grow too big. The hatchlings listen — and this mechanism might explain how birds learn to adapt, and survive climate change.Many bird species sing to their eggs. These calls have been shown to do everything from improving learning to sy