Risso's dolphin lifespan and age in human years

Longest recorded 42.5 years

🏆 The longest-lived risso's dolphin on record reached 42.5 years in captivity.

Risso's dolphin (Grampus griseus). The oldest known individual lived 42.5 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.

• Reaches adulthood at about 10 years
• Adult weight about 425 kg
• Gestation about 365 days
• About 1 young at a time