Llamas are cute, but what makes them even better human companions is their gentleness and empathy. People from their native habitat, the Andes Mountains in South America, dub them “silent brothers”.

Thixotropy is a physical property of some fluids and gels which are thick (or very viscous or semi-solid) in a static state, but which quickly becomes fluid, thin and free-flowing in the presence of ...

From embryo to turtle cracker: a team led by palaeobiologist Julia Türtscher from the University of Vienna studied the multiple changes in tooth shape in the tiger shark. The study, recently published ...

It affects a significant number of children and can leave their adult teeth permanently weakened and discoloured. Sorapop ...