In 1897 Russian physiologist Ivan Pavlov proved that animals can be trained using associative learning. A new study finds that even single-celled organisms can behave like “Pavlov's dog.” ...
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Brainless single cells just showed a form of learning

Can a creature with one cell and no brain still learn from experience? A growing body of biology suggests that the answer is ...
The next time you go wild swimming, whether in a lake, river or sea, you are probably sharing the water with one of your tiniest, yet closest relatives. Choanoflagellates, like most single celled ...