That is exactly where I got it! (Back in the 1970's). It was her Thesis paper at the University of California Berkeley. If memory serves, she also hooked male Chucks up to wires and monitored their heart reactions to new females introduced into the Tyrant's territory. Judging by the heart rate, it seems the males got much more excited about a possible new conquest than by their 7 or 8 "old ball and chains"! LOL Sounds a little like Homo Sapiens, if you ask me!! ROFLMAO