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1. www.the-scientist.com › earliest-fossil-seal-foundEarliest fossil seal found - The Scientist Magazine®

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   Apr 21, 2009 · Researchers have found a fossilized ancestor of modern seals and sea lions that they say represents an evolutionary step in the organisms' transition from land-dwelling mammals to the aquatic creatures they are today. The fossil skeleton is thought to be more than 20 million years old, making it the earliest fossil pinniped -- the taxonomic name for seals, sea lions and walruses -- yet ...

2. www.science.org › content › articleArctic Fossil Reveals a "Walking Seal" - Science | AAAS

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   Apr 22, 2009 · Alex Tirabasso, Canadian Museum of Nature; (inset) Stefan Thompson. Scientists have found the first skeleton of a land-dwelling relative of seals, sea lions, and walruses. The 20-million- to 24-million-year-old Arctic fossil sports webbed feet instead of flippers, providing a long-sought glimpse of what such animals looked like before they dove ...

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     The Evolution of Seals, Sea Lions, and Walruses

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     Sea Bear Ancestors? | Seals, Invaders of the Sea | BBC Earth

     Mar 31, 2012

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     The Evolution of Seals

     Dec 19, 2019

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4. ocean.si.edu › seals-sea-lions-and-walrusesSeals, Sea Lions, and Walruses - Smithsonian Ocean

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   The earliest ancestors of seals and sea lions were mammals that transitioned from life on land to life at sea. Around 36 million years ago, at the end of the Oligocene, the ocean began to cool, which caused major changes to ocean circulation. This led to an increase in nutrients throughout the ocean and enabled ocean life to thrive.

5. www.smithsonianmag.com › science-nature › why-didWhy Did Seals and Sea Lions Never Commit to a Life Fully at ...

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   Mar 20, 2024 · The ancestors and relatives of seals and sea lions, called pinnipeds, also took the plunge in the deep past. Paleontologists are still piecing together how otter-like creatures related to bears ...

   • Author: Riley Black

6. www.nbcnews.com › id › wbna30350884Otter-like fossil reveals early seal evolution - NBC News

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   Apr 22, 2009 · April 22, 2009, 8:10 PM UTC / Source: The Associated Press. By By Malcolm Ritter. Scientists say they've found a "missing link" in the early evolution of seals and walruses — the skeleton of a ...

7. www.nationalgeographic.com › science › articlePuijila, the walking seal – a beautiful transitional fossil

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   Apr 22, 2009 · Puijila is a massive boon for biologists trying to understand the evolution of pinnipeds, the group that includes seals, sea lions and walruses. It’s not itself a direct ancestor, having ...

8. People also ask

   Who were the earliest ancestors of seals and sea lions?

   • The earliest ancestors of seals and sea lions were mammals that transitioned from life on land to life at sea. Around 36 million years ago, at the end of the Oligocene, the ocean began to cool, which caused major changes to ocean circulation. This led to an increase in nutrients throughout the ocean and enabled ocean life to thrive.

   Seals, Sea Lions, and Walruses - Smithsonian Ocean

   ocean.si.edu/ocean-life/marine-mammals/seals-sea-lions-and-walruses

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   What was the first skeleton of a sea lion?

   • Scientists have found the first skeleton of a land-dwelling relative of seals, sea lions, and walruses. The 20-million- to 24-million-year-old Arctic fossil sports webbed feet instead of flippers, providing a long-sought glimpse of what such animals looked like before they dove into the sea.

   Arctic Fossil Reveals a "Walking Seal" - Science | AAAS

   www.science.org/content/article/arctic-fossil-reveals-walking-seal

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   Who were the first seal ancestors?

   • There are two fossil candidates for what could be considered the first seal ancestors, called Potamotherium and Puijila. Both were likely living similar lifestyles as otter-like animals, but the issue is that they come from completely different parts of the world. “One is known from Europe and one lived in the USA,” says James.

   Most comprehensive seal family tree reveals the hidden history of

   www.nhm.ac.uk/discover/news/2024/may/most-comprehensive-seal-family-tree-reveals-hidden-history-of-walruses.html

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   Are seals and sea lions descendants of Puijila?

   • Today’s seals and sea lions are not direct descendants of Puijila, but the otter-like mammal represents what pinniped ancestors were like at one point in the distant past. Paleontologists know this because rock layers of about the same age—about 24 million years old—as Puijila contain the remains of the early pinniped Enaliarctos.

   Why Did Seals and Sea Lions Never Commit to a Life Fully at Sea?

   www.smithsonianmag.com/science-nature/why-did-seals-and-sea-lions-never-commit-to-a-life-fully-at-sea-180983926/

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   Did a'missing link' in the early evolution of seals and walruses?

   • Mark A. Klingler / AP Scientists say they've found a "missing link" in the early evolution of seals and walruses — the skeleton of a web-footed, otter-like creature that was evolving away from a life on land.

   Otter-like fossil reveals early seal evolution - NBC News

   www.nbcnews.com/id/wbna30350884

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   How do seals and sea lions get around?

   • On land, seals and sea lions also have different methods for getting around. Sea lions, fur seals, and walruses are able to rotate their rear flippers up and under their bodies so that they can waddle on all four flippers. This enables their agile movement and balance on land. Seals, however, cannot do this and instead shimmy on their bellies.

   Seals, Sea Lions, and Walruses - Smithsonian Ocean

   ocean.si.edu/ocean-life/marine-mammals/seals-sea-lions-and-walruses

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9. www.nhm.ac.uk › discover › newsMost comprehensive seal family tree reveals the hidden ...

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   May 24, 2024 · Most comprehensive seal family tree reveals the hidden history of walruses. By Josh Davis. First published 24 May 2024. 6. Seals are successful marine predators found in oceans around the world. But their current diversity is just a snapshot of the species that used to exist. A new study has now explored the evolutionary history of living and ...