“I sent about three résumés each week for two months. I also called them every few days. Finally, I got through to someone,” she says. Because the foundation typically accepts only doctoral candidates for their program, Tierra had to convince them to grant her an interview. She told them that if they interviewed her, she would stop calling.
Tierra’s efforts paid off and she was accepted as a volunteer. On only her second day, Tierra made first contact with someone she had wanted to meet for a very long time. Koko had spotted her from afar and was signing “Love you visit hurry.” After getting clearance from Patterson, Tierra introduced herself to Koko and the pair immediately hit it off.
“Koko understands spoken English perfectly, but I didn’t know much sign language when I started, so she had to be patient with me at first,” she says. When Koko wanted to play chase and Tierra couldn’t understand her signs, Koko would resort to charades, acting out the game of chase. “She’ll dumb down her abilities to your level, which is a very humbling experience, but the more sign you know, the more she’ll talk to you.”
Part of the Team
After volunteering in the spring of 2004, Tierra became a more permanent member of the team when she was selected to be a paid research assistant and gorilla caregiver. Most mornings, this means preparing elaborate meals for Koko and Ndume, the foundation’s male gorilla. Ndume gets peanut butter and tortillas for breakfast, while Koko prefers gourmet fruit and vegetable platters. “She probably eats healthier than I do,” Tierra says. In the afternoons, she sets up activities for the gorillas and spends time with Koko, watching videos, playing games, and talking.
Tierra says that, despite Koko’s size, she is remarkably gentle. “Koko likes very innocent activities. She loves playing with dolls and watching movies. She usually makes you watch the same movie over and over until she’ s tired of it. I think we watched ‘Pretty Woman’ 20 times,” Tierra says.
Over time, Tierra found that she was talking more and more to Koko about her own life. “I tell her all kinds of things about myself, or even just about how my day’s going. She really has become one of my best friends,” she says.
At Koko’s 33rd birthday party, Tierra even brought her own kitten, Araña, as a special treat so Koko could play. “Koko is between kittens right now, but she loves them. She just lit up when she saw Araña,” Tierra says.
But like all friends, Koko and Tierra have their off days, too. One afternoon, after trying unsuccessfully to get Koko to go back into her house (“You can’t make a 330-pound gorilla do anything she doesn’t want to do,” Tierra explains), Tierra enlisted Ron Cohn’s help. Cohn, who is an authority figure to Koko, came out and insisted that Koko go inside. “She knew I had told on her and, as she was walking into her house, Koko turned around and signed to me that I was a ‘toilet’,” Tierra says.
Having grown up on a farm in Grass Valley, Calif., where she says there were “lambs running around the house in diapers,” Tierra is no stranger to bonding with animals. (Her first name even means “earth” in Spanish.) Still, Tierra says that most days she is thrilled and surprised by what takes place at the foundation.
“I’m as much in awe of Penny as I am of the experience of working with Koko and Ndume. Each day I learn something new from all of them,” she says.
In fact, Tierra thinks that most people could learn something from Koko. “She’s so open with her feelings,” Tierra explains. “Humans tend to taint everything as they get older and they have ulterior motives, but with gorillas, there is no clouding of emotions. If Koko loves you, you’ll know it, and if she’s sad, you’ll know that, too.”
Tierra says that Koko is very empathetic, as well. Once, after spraining her wrist, Tierra came to the foundation wearing a brace. Koko, who usually insists on having everything explained to her in detail, wanted to hear the story. “She made signs of ‘hurt’ and ‘sad’ and really cared about my pain,” she says. “But that’s typical of her.”