Using 27 years of detailed data on hyena social interactions, a team led by Penn biologists nailed down a pattern of social network inheritance and its implications for social structure, rank, and survival.
Moving from water to land and back again corresponded with distinct changes in animals’ spinal morphology, according to a new study led by paleontologist Aja Carter.
With a frilled head and beaked face, Menefeeceratops sealeyi lived 82 million years ago, predating its relative, Triceratops. Researchers including Peter Dodson, of the School of Veterinary Medicine, and Steven Jasinski, who recently earned his doctorate from the School of Arts & Sciences, describe the find.
An international research team, including Hermann Pfefferkorn of the School of Arts & Sciences, has solved the mystery of where 300-million-year-old specimens fit into the plant family tree.
Junior Ashna Sethi found an opportunity to delve into one of her passions this summer with paleobiologist Lauren Sallan’s lab in the School of Arts & Sciences.
Ancient DNA from 46,000-year-old bone fragments and a tooth reveals this group likely overlapped with Neanderthals for thousands of years.
Dineobellator notohesperus lived 67 million years ago. Steven Jasinski, who recently earned his doctorate from the School of Arts and Sciences working with Peter Dodson, also of the School of Veterinary Medicine, led the effort to describe the find.
With a unifying model based in game theory, Andrew Tilman, Joshua Plotkin, and Erol Akçay of the School of Arts and Sciences inform dynamics in fields as diverse as ecology and economics.
Border collies are highly trainable, greyhounds love to chase, and German shepherds make good guard dogs. While the environment plays a role, traits like these are highly heritable. A new study identifies 131 genetic variants associated with breed differences in behavior.
In just five generations, an altered microbiome can lead to genome-wide evolution in fruit flies, according to new research led by Paul Schmidt and postdoc Seth Rudman of the School of Arts and Sciences.