AQUA FORAGE:  I call this piece of programming the "Forage Algorithm" which much grander than calling it "A simulation programme that does small hungry creatures".   It's like "Massive" but smaller.   I should have called it "mini massive" or just "small" but I didn't because I wrote the first version of this way back in 1996.   It's original purpose was to control a group of insects (leaf cutting ants) in a life like manner by giving them real tasks.   The original 96 code would only control insects on a single 2D plane.   When the opportunity came up to control these "Hysteria" I re-wrote it to work in a 3D environment and called it "Aqua Forage". This programme controls everything including seeking out prey, speed, direction, deportment, jaw motion etc.   Just put two separate species together and watch them eat each other (but they don't really, it's all an illusion).