The hippopotamus spends much of its day half-submerged in African rivers and lakes, looking placid, even comical, as it wallows in the shallows. That impression is dangerously misleading. The hippo is ...

Few animals look as calm and harmless as a hippo lounging in the water, but appearances can be deceiving. Dangerously so, in the case of the hippo. Despite their bulky bodies and seemingly lazy nature ...