Hippos poop a lot of silica, and that’s critical for Africa’s rivers and lakes

Mongabay
May 2, 2019, 12:08 pm249 pts
In the East African savanna landscape, hippos and their poop play a critical role. By chomping on large amounts of silica-rich grass at night, then defecating into the Mara River during the day, the giant grazers help move silicon from the land to the water — something that’s vital for the health of the…

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