Hand, foot and mouth disease is making the rounds through the Philadelphia region. Here's what to watch out for.

Almost all animals have symmetrical bodies. Bilateral symmetry is almost universal in all animals and is only very rarely ...

Which genetic factors can break the symmetry of an animal's body? To answer this question, a Konstanz research team led by ...

Some parents worry that a rash is a sign of chickenpox or measles. But the chickenpox rash usually spreads from the torso ...