Zebrafish brains reveal alternate route for senses to the forebrain shared with mammals

Line up the brains of a fish, bird and a mammal, and something unexpected comes up.

You do not see three different answers to the problem of making sense of the world.

You see one answer, tilted three different ways.

"You can really see it's almost like a continuum," says Emre Yaksi, a professor at the Kavli Institute for Systems Neuroscience in Trondheim. ...