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 synchronizing hatching times. When it comes to the Australian zebra finch, we already know that they make a specific call when it’s unusually hot outside, which in this case means over 79 degrees Fahrenheit no matter what season it is. Finch parents start...
Zebra finches sing to eggs to prepare babies for global warming
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