Single-celled blob proves you don't need a brain to learn stuff

For decades, scientists believed that associative learning – understanding that two events are linked to each other, like a stimulus and a response – required at least some form of neural machinery. But now, a tiny unicellular creature without a trace of gray matter and living at the bottom of ponds may upend this long-held assumption.Continue ReadingCategory: Biology, ScienceTags: Brain, Learning, Harvard