Sex on the Breach: A summer sizzler peeks into the reproductive practices of the oceans whales

The giants of the ocean employ a surprisingly "different strokes" approach to sex. Some bull whales battle for their mates; some beguile with song and caress. Others may just get lucky – literally. And, where group sex is involved, "timing is everything" may apply. Size matters among certain species, but is almost irrelevant in others.

Between the sexes, mating can be consensual, when females urge males to outcompete each other in heat runs; or otherwise, where some males' uniquely prehensile anatomy can overcome the coyest females' evasive movements. Regardless of style - whether to battle, bully or beguile - it all enables these lusty Leviathans to pass on their genes and ensure new whale generations. 

Parental Guidance Advised: The topic, and some graphic images, dictate that parents use appropriate judgment.

Speaker: Mary Jane Schramm, Greater Farallones National Marine Sanctuary