A new story for inner ear evolution based on the developmental patterning found in hagfish, one of two extant jawless vertebrates and a link to the last common ancestor of modern jawed vertebrates.

Bioluminescence imaging of fly brains reveals neurons sensitive to fly poo laced with pheromones (you can see the fecal “landmark” in the dotted circle). Need we say more?

In addition to encoding self location, brain cells in the rat hippocampus act like a GPS that encodes the location of other rats.

Scientists have developed a new way to accurately detect the margins between cancerous and non-cancerous tissue during breast cancer surgery.