I saw an interesting thing a few years back (which I can’t now find!). It was a plot of energy usage Vs reproductive rates of various animals. The graph produced quite a linear line (more energy expended==>lower reproductive speed). Humans were wildly off that line. At least until you accounted for external energy usage (burnt fuel, electricity etc). That jumped us back to the line.

I’m still not sure if this was just a coincidental result, or pointed to a deeper correlation.