Whales and tropical breeding grounds

The optimal mating ground is characterized by warm, low-latitude tropical waters—

such as those found near Hawaii, the West Indies, or the Caribbean—which are typically calm, shallow (often between 20–60 meters), and relatively free of major predators. Whales migrate to specific mating grounds primarily to ensure the survival of their offspring.

While feeding occurs in nutrient-rich polar waters, these regions are often too cold for newborns that lack a thick insulating layer of blubber. By choosing warmer, tropical waters, whales provide a thermally stable environment where calves can dedicate energy to growth rather than heat retention.

Additionally, these breeding grounds often feature shallower, protected areas that offer safety from deep-water predators like killer whales.

Source: National Oceanic and Atmospheric Administration (NOAA)