Jane Goodall

At Gombe in 1960, observed a chimpanzee stripping the leaves from a grass stalk and using it to fish termites out of a mound — direct evidence of both tool use and toolmaking in a non-human species. Her mentor Louis Leakey received the news by writing that scientists would now have to "redefine man, redefine tool, or accept chimpanzees as human," since toolmaking had until then been treated as a defining line between humans and other animals.

Over more than six decades of continuous field research at Gombe beginning in 1960, documented that chimpanzees have distinct individual personalities and complex emotional lives, and form family and social bonds that can last more than fifty years, alongside a capacity for organized violence, including hunting other primates — a body of findings that fundamentally reshaped scientific understanding of chimpanzee behavior and, by extension, of what separates humans from other animals.

Arrived at Gombe with minimal equipment and no formal scientific training, her fieldwork funded largely through Louis Leakey's efforts to find sponsors — extensively documented as under-resourced, with basic field conditions throughout.

This sits alongside the profile's resourcefulness score: producing findings that reshaped the field from what amounted to a bare-minimum starting position. Resourcefulness

After decades focused on research at Gombe, shifted her own work from primarily research toward conservation and advocacy — founding the Jane Goodall Institute and, later, the Roots & Shoots youth program, unprompted by any employer.

This illustrates the profile's proactive_agency score: an unprompted, self-directed change in the shape of her own career, not a response to any employer's mandate. Proactive Agency