Prairie dogs, once abundant in North America, have been decimated in recent decades by plague. Researchers may have solved the mystery of how the deadly disease is spread.

Archaeological research in East Timor has unearthed the bones of the biggest rat that ever lived, with a body weight around six kilograms. Today’s biggest rats weigh around two kilograms and live in rainforests in the Philippines and New Guinea.

Researchers have found that the type of cage lab mice are kept in can physically change their brains and dramatically alter test data.

A mechanism that regulates stem-cell differentiation in mice testes suggests a similar process that may trigger degenerative disease in humans, according to a reproductive physiologist.

Scientists at Cincinnati Children’s Hospital Medical Center have discovered that a diet with high levels of fructose, sucrose, and of trans fats not only increases obesity, but also leads to significant fatty liver disease with scar tissue.

Fighting, paternity tests and infidelity. No, not a daytime talk show, but the results of new research examining why the fur will fly if a four-striped grass mouse (Rhabdomys pumilio) wanders into his neighbor’s territory. Researchers investigated aggr…

Using gene therapy, researchers say they have developed an experimental cure for Type 1 diabetes, a disease that affects about one in every 400 to 600 children and adolescents.

A researcher has identified the important role that a key protein plays in cell division, and that discovery could lead to a greater understanding of stem cells.

Researchers have achieved another cloning first with the successful delivery of a foal using oocytes from a live mare, the first such clone in the world.

The pheromone that attracts female mice to the odor of a particular male has been identified. Named “darcin” by researchers (after Darcy, the attractive hero in Jane Austen’s novel “Pride and Prejudice”), this unusual protein in a male’s urine attracts…