Female Humpback Whale with Calf in a Heat Run | Vava'u, Tonga
This female humpback whale (Megaptera novaeangliae) and her calf were the center of attention in the middle of a heat run involving six male humpback whales. The primary escort is visible in the background. The whales were traveling at high speed, diving down from time to time. The calf's inability to hold its breath as long as the adults meant that the whales surfaced relatively frequently.