Browsing: USA

There is a pond close to my house that is stocked with goldfish. I visit often, but only occasionally do I feed the fish. After awhile, the fish seem to recognize my footfall and gather close to the feeding area. This intermittent reward has found to be the strongest kind of conditioning for both animals and humans.
Medical

For 40 years, federal marijuana studies have been conducted in one place - the University of Mississippi. Contracts should be awarded to several different institutions.
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