Usually, dumping fish-killing garbage into rivers is a human’s job. But hippos seem to be doing it, too, through their routine mass pooping events. At least, that’s what a team of scientists in the ...

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Every day, thousands of hippos come to Kenya's Mara River. But they aren't there just to cool down — they also come to poop. As the hippos wallow, they collectively expel considerable quantities of ...

Hippos keep the nutrient silicon on the move through the East African environment. Each day, the giant grazers transport nearly half a metric ton of silicon, an important nutrient for both plants and ...

Hippopotamuses play a crucial role in East Africa’s ecosystem, ingesting copious amounts of silica-laden grass and excreting 880 pounds of the nutrient into Kenya’s Mara River every day. In turn, this ...

When not grazing on land, hippos like to keep cool by gathering in packed pools for up to 16 hours a day, and it takes more than some shifting bowels for them to leave again. The semi-aquatic ...

In the Mara River in Kenya, an overload of hippo feces can deplete the oxygen in the river water, resulting in mass fish die-offs downstream, a new study has found. Hippo pools are not just ...

The thunderous calls of common hippos can be heard from more than half a mile (1 kilometer) away — and when a hippo hears the booming call of an unfamiliar hippo, the animal often responds by letting ...

It's not just pollution that can harm oxygen levels in rivers. Another culprit: hippo poop. A study lead by researchers at Yale University found hippos pooping in the Mara River in Africa are killing ...

Hippos may look harmless, but their poop plays a deadly role in their ecosystem. This video explores how their waste can trigger dangerous chain reactions in rivers, affecting fish, other wildlife, ...

Hippopotamus excrement could be lethal for river fish, a new study says. In fact, it might be the reason why fish are dying in Kenya's Mara River. A common belief among ecologists is that agricultural ...