Modern science is amazing.
Homo habilis was likely more vegetarian and Homo erectus ate some meat, he said. Like chimps and apes, "they'd just avoid each other, they don't feel comfortable in each other's company," he said.
"You can tell from this tooth fragment right here--Homo habilis liked to sip Chardonnay by the fire, while Homo erectus was more likely to be downing Sam Adams out in the yard. Not very compatible, you know?"