When Pixar hired a University of Minnesota beaver scientist to consult on its latest film, it wasn’t a publicity stunt. It was a signal that the studio that once let dinosaurs coexist with early humans is now willing to get the details right—and that shift matters more than any single movie.
Pixar’s Hoppers Marks a Turn Toward Ecological Accuracy
Dr. Emily Fairfax, an ecohydrologist whose research has demonstrated that beaver wetlands reduce wildfire damage by up to 89% in affected areas, was brought on as a paid consultant for Hoppers, Pixar’s March 2026 release about an environmental activist who transfers her consciousness into a robotic beaver. According to the Twin Cities Pioneer Press, Pixar producers discovered Fairfax after she presented a 2019 stop-motion film called “Beavers and Wildfire” at a webinar they attended. A character in the film, Professor Dr. Samantha E. Fairfax, is named after her.
Fairfax corrected a common misconception that made it into the final cut: beaver incisors are orange, not white, because of iron-rich enamel that functions as self-sharpening chisels. As MPR News reported, that level of scientific consultation represents a departure from past Pixar films that took creative liberties with nature. Finding Nemo got fish behavior right in places—Gill the Moorish idol’s escape attempts align with the species’ known struggles in captivity—but The Good Dinosaur famously placed dinosaurs and early humans in the same era, millions of years apart in reality.
Deadline’s review noted that Hoppers “packs humor and heart” while drawing comparisons to Chris Sanders’ The Wild Robot in its exploration of technology meeting the natural world. The film has achieved Pixar’s best Rotten Tomatoes rating in nine years, according to the San Francisco Chronicle, and has grossed $88 million worldwide, making it the best-performing Pixar original since Coco.
The Backlash That Wasn’t—And the One That Was
Critics did not attack the beaver focus. Mashable called the film “Pixar’s most unhinged” in a positive sense, and NPR described it as “the liveliest thing to emerge from the company in years” with “unhinged comic delirium.” The New Yorker termed it “a happy leap forward for Pixar.” The criticism that did surface came from Polygon, which argued the film undermines its own environmental message by depicting Mabel’s activism as pointless and having her decisions worsen the situation—a narrative choice that “seems to be advocating for apathy.” That critique, however, does not touch on scientific accuracy. It targets storytelling.
What This Actually Means
Pixar’s investment in Fairfax is not about one film. It is about a studio that has relied on sequels and nostalgia—Lightyear and Elio underperformed—finally betting that getting the science right can differentiate its originals. Beavers are keystone species: a single family manages 5–15 dams across 1–2 kilometers of stream, and at Fairfax’s California field sites, biodiversity jumped from 5–10 species to 80+ within two years of beaver arrival. Before the fur trade, North America had an estimated 100–400 million beavers and roughly 1 billion dams that shaped river systems. Hiring someone who studies that is a statement. Pixar is no longer content to make nature a backdrop. It wants it to be real.
Background
What is Hoppers? Hoppers is a 2026 Pixar animated film directed by Daniel Chong and written by Jesse Andrews. It follows Mabel Tanaka, a 19-year-old college student who uses “Hoppers” technology to transfer her mind into a robotic beaver to protect a forest glade from a developer. The voice cast includes Piper Curda, Jon Hamm, Bobby Moynihan, Kathy Najimy, and Dave Franco. SZA wrote and performed the end credits song “Save the Day.”
Who is Emily Fairfax? Dr. Emily Fairfax is an assistant professor of geography at the University of Minnesota and leads the Fairfax Beaver Lab. Her 2020 paper “Smokey the Beaver” showed that riparian zones with beaver activity were three times less affected by wildfires across five Western states. She received the G.K. Gilbert Award for Excellence in Geomorphological Research in 2024 and the University of Minnesota’s McKnight Land-Grant Professorship in 2025.
Sources
Twin Cities Pioneer Press, MPR News, Deadline, Polygon, NPR, Laughing Place