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Allows them to sleep underwater
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- Hippos spend most of their lives in the water and, therefore, developed a method that allows them to sleep underwater. Hippos surface, breathe, and sink again while continuing their sleep due to certain brain adaptations. Hippos sleep underwater to remain hydrated and cool and protect themselves from predators.
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Feb 11, 2021 · Adventure Aquarium's Assistant Curator Mark Hacker explains the sleeping habits of hippos.
- 54 sec
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- Adventure Aquarium
- Hippo Profile
- Interesting Hippo Facts
- Hippo Fact-File Summary
The hippopotamus, or hippo, is native to sub-Saharan Africa and is a large, mostly herbivorous mammal. The name hippopotamus comes from an ancient Greek word that translates to mean ‘river horse’ and the hippo is the third-largest land mammal following the elephant and rhinoceros.
1. Hippos are the deadliest large land animal on the planet
The Hippopotamus is one of the most dangerous animals in the world, killing an estimated 500 people a year in Africa. They are extremely aggressive, unpredictable, have sharp teeth and can crush a human or predator to death with relative ease due to their size. In one 2014 case in Niger, a boat was capsized by a hippo and 13 people were killed. 1
2. Hippos love the water!
The hippopotamus is a semi-aquatic mammal. This means that even though they’re a mammal like humans, dogs, cats, and other similar species, they spend a majority of their life in the water. Their historic habitat even included the Nile River. They love the water so much that the Greeks had named them river horses! However, they only spend their days in the water. By night, they’re on the land and grazing for up to 6 hours.
3. There’s only one wild herd famous outside of Africa…
And it has its roots entangled with Pablo Escobar! During his time, Escobar ran a private zoo which featured hippopotamuses. After he left, however, they escaped into the wild and continued to thrive in Colombia, where they are now part of a herd of at least 80. Since the hippo is an invasive species in this area that could damage the river ecosystems and native wildlife, there are now efforts to help reduce their ability to reproduce, providing a more humane way to halt the growth of the her...
Scientific Classification
1. AFP. “Hippopotamus attack kills 13 people, including 12 children, in boat near Niger’s capital Niamey” ABC News. November 19, 2014. 2. Weisburger, Mindy. “Pablo Escobar’s ‘cocaine hippos’ are being sterilized because the population is out of control.” Live Science. October 21, 2021. 3. Berkovitz, Barry K.B. “Tusks and Ivory” in Nothing but a Tooth. 2013. 4. Moustafa M Haddara et al. “Hippopotamus bite morbidity: a report of 11 cases from Burundi“. National Library of Medicine. August 10th,...
- Rivers, lakes & mangrove swamps
- sub-Saharan Africa, Colombia
- 40-50 years
- 13-18 ft (4 to 5.5 m)
Mar 10, 2011 · Hippos often nap in the water during the daytime. A subconscious reflex allows them to push themselves to the surface to breathe without waking up so they can sleep without drowning.
- 2 min
Want more natural history and wildlife videos? Visit the official BBC Earth channel: http://bit.ly/BBCEarthWWBBC EarthThe BBC Earth YouTube channel is home t...
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Hippos spend most of the day in water to stay cool and hydrated. Just before night begins, they leave the water to forage on land. A hippo will travel 3–5 km (1.9–3.1 mi) per night, eating around 40 kg (88 lb) of grass.
Hippos sleep with both hemispheres of the brain resting, as in all land mammals, and usually sleep on land or in water with the nostrils exposed. Despite this, they may be capable of sleeping while submerged, intermittently surfacing to breathe without waking.
