National Geographic : 1965 Dec
tweaks of the infant's foot, inched him away from his mother. Then, with infinite care, she settled the precious burden onto her lap, sit ting very still and very close to Flo. Soon Flint gave a tiny whimper, and Flo gathered him to her breast. But as the days passed, Fifi was allowed to take the baby more often and keep him longer. None of the young chimps could approach Flint without angering his sister. If little three-year-old Gilka, for instance, came to peer at Flint, Fifi, hair bristling with fury and arms flailing, would chase her off. Baby Brother Begins to Grow Up But Flint was a living, growing creature, and soon he developed a mind of his own. Sometimes he wriggled away from his sister to seek contact with other individuals or to climb and play on low branches. I remember one occasion that seemed to mark the beginning of a new era. Fifi had taken Flint when he was asleep and carried him some distance from Flo. But Flint was growing, getting heavier, and seemed to hurt her as he clutched her hair. Fifi reached around and pulled away first 822 one little hand and then the other, but Flint promptly gripped on again. Finally, for the first time on record, Fifi carried the infant back to his mother, sat down, and pushed him in Flo's direction. At about this time, October, the termiting season began. Fifi, a keen termite fisher, be came irritated when Flint kept grabbing her grass tool, scattering the delicious insects clinging to it. She pushed him roughly away. Then, for the first time, the other youngsters were allowed to play with Flint. So, as the months passed, we watched Flint change from a helpless baby to a small chim panzee with a personality of his own. Meanwhile we watched the magnificent Faben approaching social maturity at 12 or 13 years of age. Gradually we concluded that Faben was, in fact, Flo's eldest son. This be came clear as we watched these two groom ing each other, observed Faben touching the infant Flint when others were forbidden, and noted this young male letting Flo take ba nanas ahead of him. Above all, we saw these two hasten repeatedly to each other's aid. Old Flo is quick to hurry to the defense of any of her children, and I think the baboons, also residents of the Gombe Reserve, are more afraid of her than of any other chimp. GEOGRAPHICSOCIETY No beauty but a good mother, Flo cradles Flint in her lap. Not vet on solid food, three-month old Flint ignores the banana, bit ing on his parent's finger instead. Flo and other mothers roam less than males and younger chimps, which made it easier for Jane to check on Flint's development. Banana box frustrates O()lly, who tries to open it with a branch. Jane's observation in 1960 that chimpanzees make and use crude tools-grass stems, sticks, and leaves-stands as a milestone in zoological circles. Here Oily tries in vain to pry open the steel lid of a concrete container. To attract chimps for close study, the author keeps 15 such boxes scattered about a 250-square-yard camp area to simulate a natural food supply. A lever-and-cable system permits opening of lids from a distance.