Postcrossing Unofficial: Poland
Postmarked: December 2025
Postcrossing Unofficial: Germany
Postcrossing Unofficial: Germany
Postmarked: January 2026
Postcrossing Unofficial: Germany
Postmarked: January 2026
Postcrossing Unofficial: Poland
Postmarked: November 2025
Postcard United: Germany; 54 days
Postmarked: May - June 2025
Hippopotamus
Postcard United: Lithuania; 34 days
Postmarked: May - June 2025
Top to bottom: Indian rhinoceros, hippopotamus
Postcrossing: Netherlands; 26 days; 3,902 miles
Postmarked: January - February 2025
The Hippopotamus' Birthday, 1957
GeoPostcards: Liguria, Italy; 12 days
Postmarked: January - February 2025
From my best friend: United Kingdom; September 2010
San Diego Zoo
Hippopotamus (Hippopotamus amphibius). The hippopotamus spends 18 hours a day in the water and can stay underwater for up to five minutes. Water helps keep the hippo cool and minimizes the weight of its massive body.
From my dad: August 1998
Swap-Bot: World Hippo Day PC Swap
Postmarked: Harrisburg, Pennsylvania; February 2024
Swap-Bot: July 2024 Postcard Swap International
Postmarked: Ontario, Canada; July 2024
Houston Zoo, Texas - Pygmy Hippo Close Up
Postcrossing: United States
Postmarked: February - March 2024
HIPPOPOTAMUS
Egyptian (Meir, Tomb of Senbi),
Dynasty 12 (ca. 1981 - 1885 BCE)
Faience, L. 7⅞ in
The Metropolitan Museum of Art, New York City
Hippopotamus
Glazed composition, decorated with aquatic plants.
Egypt, Middle Kingdom, c. 1900 BCE
The British Museum, London
INKAPE
Postcrossing: Russia; 26 days; 5,265 miles
Postmarked: July - August 2024
Merrimack Publ. Corp. Ny. 10003. Printed in Japan.