https://www.sciencedaily.com/releases/2018/08/180802115704.htm

In new research published this week in Nature Communications, Hebrew University of Jerusalem neurogeneticist Dr. Alon Zaslaver and his team reveal the complex mathematical calculations that animals -- even those as simple as worms -- do to find their next meal.

Think of the game "Hot or Cold?," says Zaslaver. "Imagine you're in a huge dark house and a chocolate cake has just been taken out of the oven. To find the cake, you'll probably sniff around to see what direction the cake scent is coming from and begin walking in that direction."