Among the little European birds called blue tits, it’s the yellow feathers that mark a good dad.
That’s the conclusion of a novel experiment by Juan Carlos Senar and his colleagues at the Museu de Zoologia in Barcelona.
Among the little European birds called blue tits, it’s the yellow feathers that mark a good dad.
That’s the conclusion of a novel experiment by Juan Carlos Senar and his colleagues at the Museu de Zoologia in Barcelona.