San Diego Zoo animals.sandiegozoo.org during the dry season San Diego Zoo: Hippopotamus hippo Hippopotamus grow to be huge hippopotamuses look like they're sweating blood 사람을 공격해서 죽이는 것도 마다하지 않는 zoo website. Hippos have an average life expectancy of 36 years the San Diego Zoo sandiegozoo.org http://animals.sandiegozoo.org/animals/hippo Hippo Facts from San Diego Zoo San Diego zoo site hippo visit site now