50, 100 & 150 YEARS AGO.

SCIENTIFIC AMERICAN ONLINE FIND ORIGINAL ARTICLES AND IMAGES IN THE Scientific American ARCHIVES AT scientificamerican.com/magazine/sa 1972 No Life on the Moon "It seems increasingly likely that we are not alone in the universe. " 1972, CHIMP COMPREHENSION: "Sarah the chimpanzee, after reading the message "Sarah insert apple pail banana dish" on the board, performed the appropriate actions. To make the correct interpretation to put the apple in the pail and the banana in the dish (not the apple, pail and banana in the dish), she had to understand sentence structure rather than just word order.". [Extracted from the article]