A grown pygmyhippopotamus can weigh between 400 to 600 pounds, while larger, fully-grown hippos can weigh up to 9,920 pounds and 3,000 pounds, depending if they’re male or female. The zoo ...
RICHMOND, Va. — A female pygmyhippopotamus delivered a healthy calf at the Metro Richmond Zoo earlier this month, officials said — the third baby hippo born at the zoo within the past five years.