"I've developed some special talents because I work with men. One is selective hearing."
- Amber Martorelli, animator
From the extra features on the Ratatouille blu-ray disc.
In the olden days women were not animators, they were at best "paint and line girls". But Pixar of course has animators of both sexes, though the women are in a minority. But they look better and probably smell better. And animate just as well, otherwise they'd not be at one of the top animation studios on the planet.