> When adjusted for body mass, we burn 20% more energy per day than chimps and bonobos, 40% more than gorillas, and 60% more than orangutans, Pontzer and colleagues reported in Nature in 2016.

Maybe we could insert select orangutan genes into human zygotes, as with Flavr Savr tomatoes, for the lower carbon footprint.

I wonder if there is a genotype between IQ and obesity. It seems like smarter people are less likely to be obese , and this cannot be explained only by lifestyle choices or incomes. Maybe somethign to do with higher IQs meaning higher metabolism. A higher IQ could mean more calories burned by brain.