Comment by Retric

It’s rarely such a simple tradeoff that only two things are being optimized. Modern humans live way longer than wolves for example despite being of similar body mass. However that’s fairly new in our evolutionary history as wild chimps for example cap our at ~63.

Cancer is extremely rare as a cause of death in wild animals. Again is more common but late enough that reproduction has produced multiple offspring.

Energy expenditure isn’t something we’re concerned with but drives a great deal of evolutionary optimization.