We assumed humpback whales had to reach warm tropical waters before giving birth, but a 2025 UNSW-led study found newborn calves as far south as Tasmania — around 1,500 kilometres beyond the accepted calving zone — suggesting some mothers giv - Space Daily

For decades, the clean version of humpback whale migration was easy to describe. The whales fed in cold, productive southern waters, then travelled north to warmer tropical and subtropical waters where mating, birth and early maternal care were assumed to bel…