<p>Millions of years ago, prehistoric sea creatures swam Earth's waters. This image gallery offers a glimpse at what these "sea monsters" may have looked like.</p>
<p>Pictured here: A prehistoric squid. Remains of these animals have been found near Australia, Germany, and in the Western Interior Seaway, a vast sea that once bisected North America.</p>
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Squid
Millions of years ago, prehistoric sea creatures swam Earth's waters. This image gallery offers a glimpse at what these "sea monsters" may have looked like.
Pictured here: A prehistoric squid. Remains of these animals have been found near Australia, Germany, and in the Western Interior Seaway, a vast sea that once bisected North America.
- Animals
- Photo Gallery
Image Gallery: Sea Monsters
See prehistoric sea creatures pictures in this gallery from National Geographic.
