Katherine Unger Baillie

In a North Philadelphia rowhome, four students from the School of Veterinary Medicine are examining Pebbles, a friendly cocker spaniel. She’s a little overweight but otherwise healthy. “She has a great hairdo,” fourth-year student Hannah MacAyeal tells Billy, Pebbles’ owner.

In a North Philadelphia rowhome, four students from the School of Veterinary Medicine are examining Pebbles, a friendly cocker spaniel. She’s a little overweight but otherwise healthy. “She has a great hairdo,” fourth-year student Hannah MacAyeal tells Billy, Pebbles’ owner.

Anyone who has seen Steven Spielberg’s blockbuster film “Jurassic Park” likely has an image of a Velociraptor—depicted in the movie as large, aggressive, green monsters with razor-sharp claws and teeth—seared in their brain.

A researcher from the University of Pennsylvania has identified a species of dinosaur closely related to Velociraptor, the group of creatures made infamous by the movie "Jurassic Park.” The newly named species likely possessed a keen sense of smell that would have made it a formidable predator.

Though it may not seem like it amidst the urban landscape of Penn’s campus, agriculture is an important industry in the state of Pennsylvania. A crucial component of a productive farm is access to skilled veterinarians to keep food animals healthy.

Researchers from the University of Pennsylvania and Michigan State University presented new preclinical data this week that evaluates the efficacy of a gene therapy treatment for achromatopsia, a rare inherited retinal disease that involves cone cells. The disease affects humans as well as dogs.

Dorothy Cheney, a biologist at the University of Pennsylvania, and Abraham Nitzan, a chemist who will join Penn’s faculty in July, have been elected members of the National Academy of Scie

The year was 1870. Napoleon III and his troops had just surrendered to the Prussians in the Battle of Sedan. As news of the emperor’s capture spread, mobs formed in Paris, aiming to dismantle the old government and form a new one. The life of Napoleon’s wife, Empress Eugenie, was in danger.

Many neurological diseases impair the blood-brain barrier, a highly regulated blockade that, when functioning normally, keeps all but select molecules from traveling from the circulatory system into the brain. In individuals with multiple sclerosis (MS), for example, this barrier springs leaks that lead to inflammation and neuronal damage.

Like a beloved pair of jeans, human DNA accumulates damage over time, and older people’s bodies can’t repair it as well. Many scientists believe a build up of damage can cause cells to enter an irreversible dormant state known as senescence.