Sensory features on the armored exoskeletons of ancient fish may be the reason why humans have teeth that are sensitive to ...

Hundreds of millions of years ago, fish had sensory features on their exoskeletons that contained dentine, the material that makes our teeth sensitive today ...

When trying to determine the origins of teeth, one of the many possibilities considered by researchers over the years was that teeth may have evolved from bumps ... of modern animals such as ...

Learn why both human teeth and an ancient fish contain a key sensory substance — but in different locations.

When traveling, check for bedbugs in dark, tight spaces like mattress seams and curtain piping, also noting any musty odors or reddish stains. Bedbug bites appear as small, itchy red bumps on exposed ...