Photo: Jaws, Teeth of Earliest Bony Fish Discovered

Email to a Friend << Back to Full Story


Newly discovered, 420-million-year-old fossils of the earliest known bony fish—about the size of a sardine (above)—show the animal grew teeth from its jawbones.


The find helps scientists learn how tooth-bearing jaws—a trait predominant in modern fish descendants, including humans—developed over time.


Photograph by Franck Bichon/Getty

EMAIL NEWSLETTER Photos and News of the Week

Get the top photos and news of the week from National Geographic News, plus occasional breaking-news alerts.

See Sample >>
Please enter a valid email address
Privacy Policy

MOST VIEWED NEWS

Total Solar Eclipse on August 1: Where, How to See It

PHOTOS: Rare Mummy Found With Strange Artifacts, Tattoo

PHOTOS: Over 100 "Quake Dogs" Get Medical Aid in China
NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS

ADVERTISEMENT

NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY

Today's National Geographic Photo of the Day

• Today's Photo

• Download as Wallpaper

Photo and Headline Widget

Put our latest news and photos on your Web page or desktop—automatically updates! See Sample
Download Widget