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Early Mammals News
October 15, 2020
Top Headlines
 

A Tiny Jaw from Greenland Sheds Light on the Origin of Complex Teeth

Oct. 13, 2020 — Scientists have described the earliest known example of dentary bone with two rows of cusps on molars and double-rooted teeth. The new findings offer insight into mammal tooth evolution, particularly ...

Ancient Tiny Teeth Reveal First Mammals Lived More Like Reptiles

Oct. 12, 2020 — Pioneering analysis of 200 million-year-old teeth belonging to the earliest mammals suggests they functioned like their cold-blooded counterparts - reptiles, leading less active but much longer ...

Disproportionate Extinction of South American Mammals When Americas Collided Evident Today

Oct. 5, 2020 — North American mammals were the winners when the North and South American continents collided millions of years ago. New research shows that South ...

Past Tropical Forest Changes Drove Megafauna and Hominin Extinctions

Oct. 7, 2020 — Researchers have discovered that Southeast Asia, today renowned for its lush rainforests, was at various points in the past covered by sweeping grasslands. The expansion and reduction of these ...
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Earlier Headlines
 

On the Hunt for Megafauna in North America

June 2, 2020 — Research has found that pre-historic climate change does not explain the extinction of megafauna in North America at the end of the last Ice ...

Ancient Reptile Had Mammal-Like Tooth Enamel

May 12, 2020 — A new study by paleontologists shows that one type of ancient reptiles evolved a special type of tooth enamel, similar to that of mammals, with high resistance to wear and tear. The study is the ...

Marooned on Mesozoic Madagascar

Apr. 29, 2020 — In evolutionary terms, islands are the stuff of weirdness. It is on islands where animals evolve in isolation, often for millions of years, with different food sources, competitors, predators, and ...

Coquí Fossil from Puerto Rico Takes Title of Oldest Caribbean Frog

Apr. 7, 2020 — The bright chirp of the coquí frog, the national symbol of Puerto Rico, has likely resounded through Caribbean forests for at least 29 million years. A fossil arm bone from a frog in the genus ...

Tooth Be Told: Earless Seals Existed in Ancient Australia

Apr. 3, 2020 — A fossilised seal tooth, dating back approximately three million years, found on a Victorian beach proves earless seals existed in Australia in prehistoric times. Known as monachines, the seals ...

Water Pressure: Ancient Aquatic Crocs Evolved, Enlarged to Avoid Freezing

Mar. 30, 2020 — Ancient crocodilian ancestors that abandoned land for water nearly 200 million years ago supposedly got larger because they were released from the constraints of gravity, territory and diet. But a ...

Small Horses Got Smaller, Big Tapirs Got Bigger 47 Million Years Ago

Mar. 24, 2020 — The former coalfield of Geiseltal in Saxony-Anhalt has yielded large numbers of exceptionally preserved fossil animals, giving palaeontologists a unique window into the evolution of mammals 47 ...

Unprecedented Preservation of Fossil Feces from the La Brea Tar Pits

Mar. 20, 2020 — Scientists have found the first coprolites -- or fossil feces -- ever discovered in an asphaltic -- or tar pit -- ...

Late Cretaceous Dinosaur-Dominated Ecosystem

Mar. 18, 2020 — A topic of considerable interest to paleontologists is how dinosaur-dominated ecosystems were structured, how dinosaurs and co-occurring animals were distributed across the landscape, how they ...

One of Darwin's Evolution Theories Finally Proved

Mar. 17, 2020 — Scientists have proved one of Charles Darwin's theories of evolution for the first time -- nearly 140 years after his death. Researchers discovered mammal subspecies play a more important role ...

Mysterious Bone Circles Made from the Remains of Mammoths Reveal Clues About Ice Age

Mar. 16, 2020 — Mysterious bone circles made from the remains of dozens of mammoths have revealed clues about how ancient communities survived Europe's ice ...

Apes' Inner Ears Could Hide Clues to Evolutionary History of Hominoids

Mar. 3, 2020 — Studying the inner ear of apes and humans could uncover new information on our species' evolutionary relationships, suggests a new ...

Frozen Bird Turns out to Be 46,000-Year-Old Horned Lark

Feb. 21, 2020 — Scientists have recovered DNA from a well-preserved horned lark found in Siberian permafrost. The results can contribute to explaining the evolution of sub species, as well as how the mammoth steppe ...

Dog Domestication During Ice Age

Feb. 19, 2020 — Analysis of Paleolithic-era teeth from a 28,500-year-old fossil site in the Czech Republic provides supporting evidence for two groups of canids -- one dog-like and the other wolf-like - with ...

Reconstructing the Diet of Fossil Vertebrates

Feb. 17, 2020 — Paleodietary studies of the fossil record are impeded by a lack of reliable and unequivocal tracers. Scientists have now tested a new method, the isotope analysis of zinc isotopes from the tooth ...

How and When Spines Changed in Mammalian Evolution

Feb. 3, 2020 — Researchers compared modern and ancient animals to explore how mammalian vertebrae have evolved into sophisticated physical structures that can carry out multiple functions. The comparison between ...

The 'Firewalkers' of Karoo: Dinosaurs and Other Animals Left Tracks in a 'Land of Fire'

Jan. 29, 2020 — In southern Africa, dinosaurs and synapsids, a group of animals that includes mammals and their closest fossil relatives, survived in a 'land of fire' at the start of an Early Jurassic mass ...

A 'Pivotal' Moment for Understanding Whale Evolution

Jan. 9, 2020 — We could be getting closer to understanding how feeding behaviors in whales and dolphins have evolved over ...

Fossils of the Future to Mostly Consist of Humans, Domestic Animals

Dec. 18, 2019 — A paleontologist argues that the fossil record of mammals will provide a clear signal of the Anthropocene ...

Ancient Events Are Still Impacting Mammals Worldwide

Dec. 16, 2019 — In the first study of its kind, researchers have discovered that events from 20,000 years ago or more are still impacting the diversity and distribution of mammal species ...
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