Much more difficult is learning to connect different types of stimuli or events, and predicting that one is linked to another. Such associative learning was most famously demonstrated when Ivan Pavlov ...

A giant, single-celled organism with no brain, neurons, or nervous system has demonstrated an advanced form of learning previously thought impossible for a solitary cell. The organism is Stentor ...

Researchers at Rensselaer Polytechnic Institute (RPI) have discovered a microscopic organism that can transform into a cannibalistic "supergiant" that drastically changes size, shape, and behavior, ...