The embedded track

The laser image preserves what is called a "type specimen" footprint — an original track used many years ago to describe a new species of dinosaur, says paleontologist Thomas L. Adams at SMU.

Portable 3D laser scanners capture original fossil morphology and texture, making it possible to use the data for rapid 3D prototyping in foam or resin, Adams says.

Paleontologist Michael J. Polcyn, director of the Visualization Laboratory in the SMU Huffington Department of Earth Sciences and SMU adjunct research associate, is quoted as an expert source in Real Sea Monsters: The Hunt for Predator X. The article by reporter James O'Donoghue was published in the October 2009 issue of the magazine New Scientist.

Modern land snails

Isotopic measurements performed on fossil land snail shells resulted in oxygen isotope ratios that suggest the relative humidity on the islands was higher 50,000 years ago, then experienced a long-term decrease to the time of maximum global cooling and glaciation about 15,000 to 20,000 years ago, according to new research by Yurena Yanes, a post-doctoral researcher, and Crayton J. Yapp, a geochemistry professor, both in the Roy M. Huffington Department of Earth Sciences at SMU.

For paleobotanist Bonnie Jacobs standing atop a mountain in the highlands of northwest Ethiopia, it's as if she can see forever — or at least as far back as 30 million years ago.

Jacobs is part of an international team of researchers hunting scientific clues to Africa's prehistoric ecosystems.

The researchers are among the first to combine independent lines of evidence from various fossil and geochemical sources to reconstruct the prehistoric climate, landscape and ecosystems of Ethiopia in particular, and tropical Africa in general for the time interval from 65 million years ago — when dinosaurs went extinct, to about 8 million years ago — when apes split from humans.

The work of SMU researchers Timothy Myers and Anthony Fiorillo was featured online March 19, 2009 on the Discovery Channel. "Mass Dino Graves Suggest Young Banded Together" by Jennifer Viegas highlighted findings being published in the April issue of "Science" magazine.

Vertebrate paleontologist Louis L. Jacobs, a professor in Dedman College's Roy M. Huffington Department of Earth Sciences, is quoted in Discovery News online in the February 25 story "Long-Necked Stegosaur Defies Reputation."

Jacobs is known for his work documenting changes in fossil mammals in Pakistan, which helps scholars correlate climatic changes with evolutionary changes seen in animals, and which helps calibrate the rate of DNA evolution in mammals. He's also credited for discovery of what's now known as "Malawisaurus," a plant-eating dinosaur that lived in Malawi, Africa, 115 million years ago.

Vertebrate paleontologist Louis L. Jacobs, a professor in Dedman College's Roy M. Huffington Department of Earth Sciences, is quoted in the February 3 online story "Early whales gave birth on land, fossils reveal" by National Geographic News Service.

Jacobs is known for his work documenting changes in fossil mammals in Pakistan, which helps scholars correlate climatic changes with evolutionary changes seen in animals, and which helps calibrate the rate of DNA evolution in mammals. He's also credited for discovery of what's now known as "Malawisaurus," a plant-eating dinosaur that lived in Malawi, Africa, 115 million years ago.

It's a case of mistaken dino-identity. The official State Dinosaur of Texas is up for a new name, based on Southern Methodist University research that proved the titleholder has been misidentified.

State Rep. Charles Geren of Fort Worth filed a resolution January 7 to change the name of the state dinosaur from Pleurocoelus to Paluxysaurus jonesi to correctly name the massive sauropod whose tracks and bones litter the central Texas Jones Ranch.

Vertebrate paleontologist Louis L. Jacobs is scientific consultant and co-writer of a new 33-minute video just released by the Society of Vertebrate Paleontology.

A professor in Dedman College's Roy M. Huffington Department of Earth Sciences, Jacobs introduces the "We Are SVP" video. An internationally known vertebrate paleontologist, he is a former president of the society.

If you've ever visited a dog park, you may have noticed that a chihuahua tires much more quickly than a German shepherd. That does not occur just because a small dog takes more steps to cover the same amount of ground, says Peter Weyand, associate professor of applied physiology and biomechanics in SMU's Annette Caldwell Simmons School of Education and Human Development.

In his research into animal and human physiology, Weyand has studied the impact of such factors as muscular force and the amount of time limbs are in contact with the ground on the energy cost of walking and running.

In his third-floor laboratory in Dedman Life Sciences Building, biologist Robert Harrod and his team are zeroing in on a new way to inhibit the virus that causes AIDS. They already have shown that their approach, which involves the rare genetic disorder Werner syndrome, works when the disorder's enzyme defect is introduced into cells.

Now they are trying to find practical ways to use this pathway to inhibit the AIDS virus. The beauty of this approach is that the AIDS virus will not be able to mutate in a way that can defeat this treatment, says Harrod, associate professor in the Biological Sciences Department of Dedman College.

The movement of aquatic life can appear inexplicable when viewed through the glass of an aquarium tank.

But Paul Krueger believes the mechanics that jellyfish and squid use to maneuver can be applied to technology in the emerging field of "micro" vehicles.