Using pacemakers to electrically retune a heart damaged by long bouts of a wobbling heartbeat, where one heart muscle wall is beating sooner than the other, leads to fast improvements in the tissue levels of more than a dozen proteins key to the organ’s health, scientists at Johns Hopkins report in experiments in dogs.

A new study on monkeys has found that moderate exposure to alcohol and stress during pregnancy can lead to sensitivity to touch in the monkeys’ babies. In human children, sensitivity to touch is one of a number of characteristics of the approximately 5 percent of children who over-respond to sensory information.

A new plan to further reduce, refine and replace the use of animals in research and regulatory testing commonly referred to as the 3Rs was unveiled today at a symposium marking the 10-year anniversary of the Interagency Coordinating Committee on the Validation of Alternative Methods (ICCVAM).

Researchers in Washington and Oregon report an advance toward developing much-needed new drugs and vaccines for monkeypox.

State health officials are warning that some pet owners may be at risk of contracting psittacosis from their recently purchased cockatiels or other pet birds.

Natural selection can occur at the cellular level, where it is detrimental to health. Fortunately it is normally controlled by a well-known pattern of ongoing cell differentiation in the mature tissues of animals, according to a new study published December 14 in PLoS Computational Biology.

Although society is accustomed to seeing Garfield-sized cats, obese, middle-aged cats can have a variety of problems including diabetes mellitus, which can be fatal.

Fever is an effective defence against disease, but new research suggests that not all animals use it when exposed to infection. The study, published online in the British Ecological Society’s journal Functional Ecology, found large differences in fever responses among closely related species of mice and suggests that an animal’s reproductive strategy could explain some of this intriguing variation.

Researchers at the University of Leeds have made a breakthrough in understanding a virus which poses one of the greatest global disease threats to wild carnivores including lions, African wild dogs and several types of seal.

A rare Amur leopard (Panthera pardus orientalis), one of only an estimated 30 left in the wild has been captured and health-checked by experts from a consortium of conservation organizations, before being released.

Even early in adulthood, aging begins to slow the mind's growth -- but it does not have to stop it altogether, suggests a Princeton University study on the brains of adult monkeys.

Sleep disorders are common and poorly understood. In humans, narcolepsy is a sleep disorder associated with sleepiness, abnormal dreaming, paralysis and insomnia. Neuropeptides called hypocretins are implicated in this disorder.