So far my only quibble is that Sapolsky cites the infamous "priming" study from 'Thinking, Fast and Slow', which the author, Daniel Kahneman, himself has retracted it elsewhere. This is forgivable, as the retraction from Kahneman (Feb 2017) and the release of 'Behave' (May 2017) were too close. Though I'll keep an eye for other transgressions.
Regardless of my quibbling, 'Behave' has so far been an exhilarating read; it covers an insane amount of ground, all while not losing sight of its goal—a better understanding of human nature.
Don't let the page count discourage you—you'll quickly warm up to Sapolsky's loquacious writing style, peppered with tasteful humor and a deep love for science. And don't skip the footnotes; plenty of interesting bits in there. (Get the hardcover edition if you can, it's much less unwieldy during back-and-forth flipping, among other benefits.)