FEATURES
Slideshow
Long before great white sharks appeared, much larger ancestors roamed the ocean. This giant ancient shark -- the Giant Megatooth ( Carcharodon megalodon ) -- was probably big enough to eat...
Photo MORE STORIES
Like the modern nautilus, this relative of modern squid hunted from inside the...
Timeline MORE STORIES
What makes a top predator? Razor-sharp teeth? Speed? Strength? Size? Who is the...
Blog entry MORE STORIES
The evolution of whales represents one of the great stories in macroevolution...
LATEST POSTS
Jun 10, 2013 - 9:48AM
Offshore Peru, during the Eocene (~56-34 million years ago), showing three archaeocetes (ancient whales), along with a previously described fossil penguin. Top to bottom: Perudyptes devriesi , unnamed protocetid, Ocucajea...
LEARN MORE
Whales swim, but their ancestors walked. Whales are mammals (like us) whose ancestors lived on land. Life probably began in...
MORE ANCIENT SEAS
Dec 4 2009 - 2:25pm
About 100 million years ago, during the heyday of the dinosaurs , reefs were built by mollusks called rudist clams . They looked very different from today's coral reefs . Discover more about the...
Jan 18 2013 - 9:28am
For a long time, scientists thought that some small tentacled fossils were early ancestors of jellyfish. But a new study has found that these ancient animals are actually related to an entirely...
Pages
