What Really Happen in a Hippo Pool

At first glance, a hippo pool looks like a lazy scene, giant animals bobbing in muddy water, barely moving. But there’s a lot more going on under the surface.

A hippo pool is usually a shallow section of river or lake where groups of hippos gather during the day. Hippos can’t sweat, so staying submerged helps them stay cool and keeps their skin from drying out. It’s basically their version of air conditioning.

Hippos are surprisingly social. One dominant male controls most of the pool and the females within it. Young males linger on the edges, hoping for a chance to challenge the boss. There’s a lot of snorting, yawning (which is really a warning), and splashing that goes on to maintain order.

Even though they look slow, hippos are highly territorial and can be extremely aggressive, especially in the water.

At sunset, hippos leave the pool and travel up to 10 kilometers (6 miles) on land to graze on grass. They’re herbivores, but don’t let that fool you, hippos are considered one of the most dangerous animals in Africa due to their unpredictable behavior.

Hippos may seem like oversized bath toys, but they play a key role in their ecosystems. Their waste adds nutrients to water systems, feeding fish and aquatic plants. They’re like living links between land and water.

A hippo’s skin secretes a natural “sunblock” that looks pink, it’s sometimes called “blood sweat” (but it’s neither blood nor sweat).