Gangnam Style

Hanoi, Vietnam: Two hippopotamuses are fed pumpkins at Hanoi zoo. The zoo has been home to more than 800 animals of over 90 different species since it was built in 1976. Photo: Lượng Thái Linh/EPA.

Seahorse

A hippopotamus eats frozen watermelon to cool off at Bioparco di Roma during a heat wave on July 25, 2018 in Rome, Italy. Photo: AFP/Tiziana Fabi.

A Birthday Party

A hippo known as Pepa is pictured during celebrations for its daughter’s fourth birthday at Santa Fe zoo in Medellin, Colombia. Photo: Joaquin Sarmiento/AFP/Getty Images.

Light-second

Wrocław, Poland: A three-day old female hippopotamus with her mother are seen in their enclosure at the zoo in Wrocław. Photo: Maciej Kulczyński/EPA.