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Smithsonian curator of fossil marine mammals Nick Pyenson and a team of collaborators are heading into Chile's Atacama Desert , shown here. They'll study a rich bonebed of fossil marine vertebrates that lived off...
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The whales that we see in today's world can broadly be split into two groups:...
Blog entry MORE STORIES Blog entry MORE AUDIO / VIDEO
One of the ocean's tiniest organisms often does the most harm. Microscopic...
Blog entry MORE STORIES Blog entry MORE AUDIO / VIDEO
The evolution of whales represents one of the great stories in macroevolution...

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A behind the scenes look at the NMNH ocean-related collections and their importance to research and discovery.
This fossil tooth whorl of the ancient shark Helicoprion , dates back 290...
Offshore Peru, during the Eocene (~56-34 million years ago), showing three...

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When the cod fishery collapsed in Newfoundland in the early 1990s, the hopes of the local fish harvesters collapsed with it...
Earth’s first animals had soft bodies. This illustration shows a community of soft-bodied Ediacaran (edi-A-karan) animals. Some species resemble living ocean creatures. Others are unlike any known...
These deep-sea sediment cores were drilled from beneath the seafloor, and hold information about millions of years of ocean and atmospheric chemistry. As dirt, dead organisms, and other particles...
Paeleobiologist Dr. Nicholas Pyenson, Curator of Fossil Marine Mammals for the Smithsonian's National Museum of Natural History (NMNH), set out with Jorge Velez-Juarbe, NMNH Research Student and Ph...
The evolution of whales represents one of the great stories in macroevolution. It's a narrative that has mostly benefitted from an extraordinary series of fossils recovered from rocks around the...
Editor's note: Read Nick's first blog post about "toothed" baleen whales to see what their team is excavating on Vancouver Island. We departed from Port Renfrew on Tuesday morning on the Michelle...
Monodontids, the group of whales that includes the belugas and narwhals swimming our ocean today, are emblematic symbols of the Arctic. However, their fossil record, although scarce, suggests that...
The Wiwaxia corrugata may have molted its scales in order to grow past these hard boundaries.
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 ,...
These are fossil remains of archaeocetes, ancient whales, from the Paracas Formation of Peru's Pisco Basin . Smithsonian paleobiologist Nicholas D. Pyenson and a team of scientists discovered the...
Monodontids, the group of whales that includes living belugas and narwhals, are emblematic symbols of the Arctic. However, the fossil record shows that these animals had a much larger range than the...
A time-lapse video shows researchers from the Smithsonian's National Museum of Natural History and Smithsonian's Tropical Research Institute racing to excavate the fossil of an extinct toothed whale...
Paeleobiologist Dr. Nicholas Pyenson, Curator of Fossil Marine Mammals for the Smithsonian's National Museum of Natural History (NMNH), set out with Jorge Velez-Juarbe, NMNH Research Student and Ph...
Paeleobiologist Dr. Nicholas Pyenson, Curator of Fossil Marine Mammals for the Smithsonian's National Museum of Natural History (NMNH), set out with Jorge Velez-Juarbe, NMNH Research Student and Ph...
Jorge and I packed up the night we arrived in Panama with Aaron O'Dea and his team from STRI . The road we took in two field vehicles mostly followed the Panama Canal heading northwards; we had to...
This fossil tooth whorl of the ancient shark Helicoprion , dates back 290 million years. For a long time, people didn't know what the shark looked like—but, thanks to a CT scan of a fossil,...
Globotruncana falsostuarti -- a foram that lived about 75 million years ago, during the Cretaceous Period, from southeastern Tanzania. By measuring the chemistry in the shell, scientists can estimate...
Nick Pyenson, the curator of fossil marine mammals at the Smithsonian's National Museum of Natural History, points to the skull and skeleton of a fossil "toothed" mysticete ( baleen whale ) on the...
A behind the scenes look at the NMNH ocean-related collections and their importance to research and discovery.
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