1855: A tornado — widely regarded to be the first documented to occur within the present-day city limits of Chicago — ...

The hippopotamus is a semiaquatic mammal. It is native to sub-Saharan Africa and is one of the largest land mammals in the ...

Sierra Leone’s present beauty and past pain are intimately bound. A journey from the West African country’s jungles to its ...

Sierra Leone’s present beauty and past pain are intimately bound. A journey from the West African country’s jungles to its ...

Pygmy hippos can be housed and supported at a much lower cost. Huanyuan Zhang, a college lecturer at the University of Oxford who studies West African forest ecology, was surprised to see a sudden ...

San Antonio's biggest little falcon has officially stolen hearts on social media. Last month, the San Antonio Zoo announced ...

Why would a rhino pick a fight with a hippo, and who has the advantage? Do hippos and rhinos usually get along? Despite their ...

Last month, the San Antonio Zoo announced the birth of an African pygmy falcon chick, which hatched March 18. Looking more like a cotton ball with a beak and claws, the "pint-sized powerhouse ...