Nature Podcast

A brain circuit for infanticide, in mice

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Sinopsis

In this episode:00:46 The mouse brain circuit controlling infanticidal behaviourIn mammals, infanticide is a relatively common behaviour, but not a default one. For example, virgin female mice will often kill young produced by other females, but this behaviour disappears when they become mothers themselves. To understand this switch, researchers have identified a brain circuit associated with infanticidal behaviour that gets switched off after mice give birth. They hope that by better understanding this circuit it could inform why animals engage in such behaviours.Research article: Mei et al.Research Briefing: A battle between neural circuits for infanticide and maternal-care behaviours08:11 Research HighlightsThe cyclone raging at the north pole of Uranus, and the ants that build landmarks to help them find their way home.Research Highlight: A storm is whirling atop UranusResearch Highlight: These hardy ants build their own landmarks in the desert10:52 Getting to the source of fast solar windThe sun produces