AUG 30, 2021 5:56 AM PDT

Amphibious Whale Fossil Discovered in Egypt

WRITTEN BY: Carmen Leitch

The first animals that were ancestors of whales are thought to have been deer-like mammals that could walk on land about 50 million years ago, and over time, they evolved into the ocean dwellers we're familiar with today. The now-extinct animals that were in the middle of that transition from land-based to sea-based animals are called Protocetidae. Reporting in the Proceedings of the Royal Society B, scientists excavating rocks from the Fayum Depression in the Western Desert of Egypt have discovered a fossil from an amphibious whale that lived an estimated 43 million years ago. This creature, which was belongs to the Protocetidae group, could swim in water and walk on land.

The Western Desert in Egypt / Credit: Carmen Leitch

The fossil indicates that the animal, now named Phiomicetus anubis, weighed about 600 kilograms (about 1,300 pounds) and was three meters (10 feet) long. Its jaws appear to have been powerful, and the animal probably used them to consume prey. The researchers suggested that it may have been a major predator in its environment.

The rocks in the Fayum Depression represent about 12 million years of history, and discoveries there "range from semi-aquatic crocodile-like whales to giant fully aquatic whales," said study co-author Mohamed Sameh of the Egyptian Environmental Affairs Agency.

This is the first time a specimen from this species has been found, and this is the oldest protocetid whale found in Africa. The research has revealed new details about the transition of whales from amphibious to totally aquatic.

Scientists also discovered an amphibious whale fossil in Peru in 2011. That animal had four legs, hooves and webbed feet.

Sources: International Union for Conservation of Nature (IUCN), Proceedings of the Royal Society B

About the Author
BS
Experienced research scientist and technical expert with authorships on over 30 peer-reviewed publications, traveler to over 70 countries, published photographer and internationally-exhibited painter, volunteer trained in disaster-response, CPR and DV counseling.
You May Also Like
MAY 17, 2022
Plants & Animals
Broad International Cooperation Needed to Save Coral Reefs
MAY 17, 2022
Broad International Cooperation Needed to Save Coral Reefs
Coral reefs have long been a central focus of the impacts of climate change. We hear stories every other day, it seems, ...
MAY 24, 2022
Cell & Molecular Biology
CRISPR Cockroaches? Gene-Editing in Insects is Now Possible
MAY 24, 2022
CRISPR Cockroaches? Gene-Editing in Insects is Now Possible
In another advance for CRISPR technology, researchers have devised a way to edit genes in insects, including cockroaches ...
JUN 03, 2022
Infographics
Bioluminescence: Life on Earth...and Beyond?
JUN 03, 2022
Bioluminescence: Life on Earth...and Beyond?
Summary: Bioluminescence is a chemical reaction where light is produced by organisms to hunt prey, defend against predat ...
JUN 12, 2022
Plants & Animals
Vegan Diet Rich in Legumes Helps with Weight Loss
JUN 12, 2022
Vegan Diet Rich in Legumes Helps with Weight Loss
New research conducted by the Physicians Committee for Responsible Medicine suggests that a vegan diet offers a range of ...
JUN 11, 2022
Coronavirus
Dogs Could Be Even Better at Detecting Covid-19 Than a PCR Test
JUN 11, 2022
Dogs Could Be Even Better at Detecting Covid-19 Than a PCR Test
Dogs are amazing. And their sense of smell, well, it's pretty good, too – significantly better than our own. W ...
AUG 09, 2022
Earth & The Environment
Tropical ozone hole larger than Antarctic ozone hole
AUG 09, 2022
Tropical ozone hole larger than Antarctic ozone hole
In a recent single-author study published in AIP Advances, Qing-Bin Lu, a scientist from the University of Waterloo in O ...
Loading Comments...