"Whale Menopause: Clues to Longevity and Evolution"

A study of whales suggests that menopause gives an evolutionary advantage to grandmother whales’ grandchildren, offering insights into why humans also experience menopause. The findings support the "grandmother hypothesis," which suggests that menopause evolved to allow older women to focus on supporting their children and grandchildren. The study indicates that species with menopause have longer lifespans, supporting the live-long hypothesis. While the similarities between whales and humans shed light on menopause, the study doesn't explain why only females undergo menopause in humans.