Anticipation is building for the first presidential debate next week, when Donald Trump and Hillary Clinton will finally face each other one-on-one.

Well-known anthropologist Jane Goodall made her expectations for the debate clear when she said Trump’s behavior will likely be similar to one of the male chimpanzees she has studied extensively throughout her career.

“In many ways the performances of Donald Trump remind me of male chimpanzees and their dominance rituals,” Goodall told The Atlantic. “In order to impress rivals, males seeking to rise in the dominance hierarchy perform spectacular displays: stamping, slapping the ground, dragging branches, throwing rocks.”

Goodall said she will be thinking of a certain misbehaving chimpanzee named “Mike” as she watches Trump debate Hillary Clinton on Sept. 26. She did not comment on the habits of silverback gorillas such as Harambe, who was shot earlier this year at the Cincinnati Zoo.

While the anthropologist was quick to point out Trump's faults and compare him to a primate, she didn't comment on the Democratic nominee's behavior.

Hillary Clinton has done her share of chest bumping. She has a track record of consistently lying. She has tried to silence her husband's sexual misconduct victims. She did nothing about the situation in Benghazi, costing American lives in 2012. She failed to secure her personal email server, putting national security interests at risk. The list goes on and on. The only animal that comes to mind for her is a shark.

Huffington Post assistant editor Chris D’Angelo weighed in on Goodall’s comments as well.

“To date, we’ve not seen Trump drag branches or throw rocks, although anything is possible,” he wrote. “Instead of physical displays, the Republican presidential nominee has stuck to verbal ones ― bragging about his penis, launching personal attacks and resorting to racist and sexist insults.”