Bird embryos respond to adult warning calls inside their shells

A pair of researchers with Universidad de Vigo has found that yellow-legged gull embryos respond to parental warning calls by vibrating inside their shells. In their paper published in the journal Nature Ecology and Evolution, Jose Noguera and Alberto Velando describe their study of the gulls in their lab and what they learned.

Armadillo - Operation Wildlife

Embryos of many species use sound to prepare for the outside world

Variation in avian egg shape and nest structure is explained by climatic conditions

Transcriptomic effects of Perfluoralkyl acids on the adipose tissue of a songbird species at environmentally relevant concentrations - ScienceDirect

Embryonic Eavesdropping: How Animals Hear and Respond to Sound

Into the Nest: It's hatch day! — Badgerland Bird Alliance

Unhatched birds can warn others of danger by vibrating shells, Animal behaviour

Even Inside Their Eggs, Bird Embryos Are Listening

Spix's Macaw: The Race to Save the World's by Juniper, Tony

As African Penguins Go Hungry, a Debate Rages in South Africa: Who Gets the Fish?

36 Bird activity ideas + fun facts – Childsplayabc ~ Nature is our playground

How to Get Rid of Powderpost Beetles

Equate Beauty Petroleum Jelly Skin Protectant, 13 Oz.

Bridging the In Vitro to In Vivo gap: Using the Chick Embryo Model to Accelerate Nanoparticle Validation and Qualification for In Vivo studies

The American Oystercatcher - Cape Cod National Seashore (U.S. National Park Service)