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Mammals Grew 1,000 Times Larger After the Demise of the Dinosaurs

By Guest PostNovember 27, 2010Scienceafrican elephant, body size patterns, deinotherium, dinosaurs, early pleistocene, eocene, Epoch, evolution of body size, extinction of dinosaurs, felisa smith, indricotherium, late-miocene, mammals, oligocene, saran twombly, united states, university of new mexico

*NSF enabled the assembly of an international, interdisciplinary team that was the first to quantitatively document body size patterns over the past 100 million years*

Researchers have demonstrated that the extinction of dinosaurs some 65 million years ago paved the way for mammals to get bigger, about a thousand times larger than they had been when dinosaurs roamed the earth. The study, released in the journal Science, is the first to quantitatively document the patterns of body size of mammals after the existence of dinosaurs.

About the Image: The largest land mammals that ever lived, Indricotherium and Deinotherium, would have towered over the living African Elephant. Indricotherium lived during the Eocene to the Oligocene Epoch (37 to 23 million years ago) and reached a mass of 15,000 kg, while Deinotherium was around from the late-Miocene until the early Pleistocene (8.5 to 2.7 million years ago) and weighed as much as 17,000 kg. Image credit: NSF RCN IMPPS (more…)

Dinosaurs Significantly Taller than Previously Thought

By Guest PostOctober 3, 2010Sciencecartilage, casey holliday, dinosaur, mammals, ohio university, reptiles, university of missouri

COLUMBIA, Mo.– It might seem obvious that a dinosaur’s leg bone connects to the hip bone, but what came between the bones has been less obvious. Now, researchers at the University of Missouri and Ohio University have found that dinosaurs had thick layers of cartilage in their joints, which means they may have been considerably taller than previously thought. The study is being published this week in the journal PLoS-ONE (Public Library of Science). (more…)

New Study Shows How Tortoises, Alligators Thrived in High Arctic Some 50 Million Years Ago

By Guest PostAugust 24, 20101 commentSciencealligators, arctic circle, arctic climate, arctic temperatures, climate change, coryphodon, ellesmere island, eocene period, flight recorder, fossil, fossil bone, greenland, henry fricke, hippo-like mammal, howard hutchison, jaelyn eberle, john Humphrey, logan hackett, mammals, michael newbrey, oxygen isotope ratios, pleistocene period, quebec, saint lawrence river drainage, tooth enamel, tortoises

A new study of the High Arctic climate roughly 50 million years ago led by the University of Colorado at Boulder helps to explain how ancient alligators and giant tortoises were able to thrive on Ellesmere Island well above the Arctic Circle, even as they endured six months of darkness each year.

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Survival of the fittest :-)

By ShamsMay 9, 20081 commentEnvironmentmammals, plant predators

A nice video of mammals predating upon plants. This video is originally from BBC but we found it from Yahoo!Video. It shows how animals can adapt to their surviving tactics – here we can see they are almost straight up (like human beings) and enjoying their meals 🙂 . Guten appetite!!

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Tag Archives: mammals

Mammals Grew 1,000 Times Larger After the Demise of the Dinosaurs

Dinosaurs Significantly Taller than Previously Thought

New Study Shows How Tortoises, Alligators Thrived in High Arctic Some 50 Million Years Ago

Survival of the fittest :-)