Biomolecular analysis shows that unusual book coverings are made of sealskin, hinting at far-flung trade networks.

The books hail from Clairvaux Abbey, founded in 1115 by Cistercian monks in northern France, and its daughter monasteries. Some tomes are nearly 900 years old. Researchers had thought they were ...

Texas child dies from the preventable disease, HHS Secretary Kennedy is now urging measles vaccination yet still touting unproven treatments.