Bird Embryos Can Discern Between Calls—a First in Nature

Bird Embryos Can Discern Between Calls—a First in Nature

While in the egg, superb fairy wrens, such as this one in Australia, can discern between individual birds. We’re not the only species that can recognize voices in the womb: Inside the egg, tiny songbirds called superb fairy wrens can discriminate sounds from different birds of their own species, […]

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