13 episodes this time, babies a feature. Some fans have objected, but if a series runs for years and there are romances, babies surely may well result. Here they pave the way for an added dimension as characters try to cope.
There is thus extra scope for deadpan comedy from one of television's most unlikely couples. Tough FBI man Booth is emotional about the imminence of new life. Humourless forensic expert Brennan insists on working to the last moment, her excitement confined to thoughts of teaching their future offspring such delights as how to dissect a frog. Meanwhile colleagues Angela and Hodgins try not to let sleepless nights with little Michael affect their work.
The four stars rise to the challenge. They sparkle. They are fun.
Despite such commitments, all actively set about solving yet more intriguing cases. The yuk factor abounds with corpses often in advanced stages of putrefaction (including one flattened over a long stretch of highway). Often identities of culprits genuinely surprise.
As always, the likeable main cast is complemented by quirky "squinterns", Finn a most welcome addition. (More of him, please!) Booth's blunt boss Caroline remains great value. (More of her, too, would be very welcome.) Especially moving is Ep. 4, enhanced by Ralph Waite (of "The Waltons") as Booth's grandfather.
Some may find Ep.12 set in Hollywood a bit silly (although the makers seem thrilled with it). Few, though, will doubt the impact of the season's finale - a ruthless serial killer running rings round the team, one of them in particular danger....
Commentaries. Modest extras. A happy gag reel.
Although occasionally uneven, the series has been a firm favourite from its very start. This latest season may be shorter than many would wish but still contains much to please, babies included.