at least i get out into the forest. and i need that to reinvigorate my spirit. chris: time is something goodall thinks about now. >> i don't know how long i have, i don't know how far it is to be at the end. the older you get, the nearer you get to that end, and i've still got so much to do. chris: when i said thank you, this astonishing woman had one more surprise, showing me how the chimps would do it. >> i would have held out my hand -- chris: yes. >> -- and you would have petted it like that. chris: like that? >> that would be a nice thank you. [laughter] chris: thank you. goodall says as a child she was inspired by the stories of dr. doolittle and tarzan, adding tarzan shows the wrong jane. he sure did. before we go, a program note. be sure to catch the new prime time lineup starting monday night on fox news channel. tucker carlson tonight at 8 p.m. has an exclusive interview with