Head over Heels

To woo a potential mate, a male humpback whale pulls out some surprisingly smooth—and tender—moves.

Every winter, travelers from afar converge on the islands of Tonga to witness an amorous ocean spectacle. Between 1,000 and 2,000 humpback whales (Megaptera novaeangliae) make their way here each year to mate and calve in the tropical waters of the South Pacific. Photographer Tony Wu, who is renowned for his stunning whale portraits (like these jaw-dropping shots of a superpod of sperm whales) can’t resist joining them; for the past 16 years, he has made his own annual migration to Tonga to capture this impassioned social gathering.

While humpback whales can be found around the globe, this particular population spends its summers in the frigid waters off Antarctica, feasting on krill (Euphausia superba). They convert these calories to blubber, which must sustain them for their epic 4,800-kilometer (3,000-mile) journey north to Tonga—and for the energetic breeding activities to come.

To start, male humpbacks spar in competitive displays called “heat runs,” fighting to attract the attention of a single female and to earn the privilege to mate. Wu has witnessed many a heat run over the years, and loves photographing what he describes as “all-out pec-slapping, bubble-blowing, body-slamming, tail-whacking, guttural snorting, full-contact chaos.”

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