Bird Eggs Warn Each Other About Danger

The video explores the surprising ability of bird eggs to communicate with each other and adapt to external threats. A 2019 study on yellow-legged gulls demonstrated that eggs exposed to alarm calls could pass on warnings to unexposed eggs through vibrations. This communication led to behavioral changes in chicks, such as increased stress hormone levels and quicker hiding responses. The study suggests that such communication might be common among other egg-laying species, like turtles, indicating a broader biological phenomenon.

What did scientists discover about eggs in 2019?

How do bird moms communicate with their chicks through the egg wall?

What was the purpose of the artificial nests created by the researchers?

What were the observed behaviors of chicks that were exposed to alarm calls in the egg?

How might eggs communicate with each other according to the researchers?