Every time our body encounters a new disease-causing agent, a crucial defense system called adaptive immunity comes into play ...

More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...

Researchers demonstrated that declining Hedgehog signaling from Cilk1 loss produces stepwise changes in tooth formation ...

This rare outcome in cartilage repair suggests true biological cartilage regeneration, not merely defect filling Unlike ...

Scientists have uncovered a new way embryonic cells divide when conventional mechanisms fail. Cell division underpins all ...

Researchers at Dresden University of Technology reveal that early zebrafish embryos divide without a closed actin ring.

Earth's first large land organisms—tree trunk-like beings that stood up to 26 feet tall—weren't early fungi but, rather, ...

Over 150 years ago, a fossilized organism known as Prototaxites emerged as an enigma regarding what early land life may have ...

You’ve heard of “brain foods”, right? Foods that feed the brain to help you remember things or think clearer. But what about ...

Changes in early tooth development can have surprisingly big effects on a person's smile. Missing teeth, extra teeth, unusually small or large teeth ...