Neuroscientists explore the risky business of self-preservation

(Northwestern University) Northwestern University researchers have learned that the escape response for prey is more nuanced than previously thought. In a study of larval zebrafish, the researchers are the first to find that the animal’s innate escape response incorporates the speed of the approaching predator — not just the proximity of the predator — in its calculation of how best to flee. The new information can help scientists understand the neural mechanics that fuel the most elemental self-preservation instincts.