New discovery of the earliest known hippo fossil in the UK

A fossil of an extinct species of hippo that is over one million years old has been discovered in Somerset by researchers at Royal Holloway, University of London and the University of Leicester. This finding surpasses the ...

Hippos, the animal silicon pumps

The excrement of hippos plays an important role in the ecosystem of African lakes and rivers. Because there are fewer and fewer hippos, this ecosystem is in danger. In the long term, this could lead to food shortages at Lake ...

Hippo waste causes fish kills in Africa's Mara River

Ecologists have long known that agricultural and sewage pollution can cause low oxygen conditions and fish kills in rivers. A study published today in Nature Communications reports that hippo waste can have a similar effect ...

Hippo teeth reveal environmental change

Loss of megaherbivores such as elephants and hippos can allow woody plants and non-grassy herbs and flowering plants to encroach on grasslands in African national parks, according to a new University of Utah study, published ...

Insect growth regulator wears a second hat: Infection fighter

During an animal's embryonic development, a chemical chain reaction known as Hippo directs organs to grow to just the right size and no larger. Now Johns Hopkins researchers working with laboratory flies report that this ...

Hippo 'crosstalk' may be vital to tumor suppression

Think of a waterfall, and you might see why cell-signaling pathways are important to cancer research. As water cascades, it impacts everything downstream. And everything upstream affects the waterfall.

Who's your daddy? Hippo ancestry unveiled

A great-great grandfather of the hippopotamus likely swam from Asia to Africa some 35 million years ago, long before the arrival of the lion, rhino, zebra and giraffe, researchers said Tuesday.

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