Celebrated on 02/15/2026
Hippos are the third-largest land mammals, weighing up to 3,300 kg, and they can hold their breath for up to five minutes underwater. Despite their bulky appearance, they can run at speeds of 19–28 miles per hour on land.
National Hippo Day was established in 2016 by the Hippo Haven Wildlife Sanctuary in South Africa to raise awareness about the conservation status of hippos. The date, February 15, was chosen to coincide with the end of the hippo breeding season in the Southern Hemisphere, highlighting the importance of protecting calves and their habitats.
Initially a small local event, National Hippo Day gained international recognition through social media campaigns and partnerships with zoos worldwide. Today, it is celebrated with educational programs, fundraising events for hippo conservation, and virtual tours of hippo habitats. Zoos often host special feedings and talks, while online communities share photos and facts using the hashtag #NationalHippoDay.
Hippos are responsible for an estimated 500 human deaths per year in Africa, making them one of the continent's most dangerous large animals. Their closest living relatives are whales and dolphins, not pigs or other ungulates. * A hippo's skin secretes a natural sunscreen substance called "blood sweat" that is red and oily, protecting them from sunburn and infections.
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