Conservation biologists based in four countries gathered for an emergency meeting in Vientiane, Lao PDR, August 19

A new University of Florida study shows mammals change their dietary niches based on climate-driven environmental changes, contradicting a common assumption that species maintain their niches despite global warming.

A Wildlife Conservation Society research intern working in the wilds of Papua New Guinea has successfully completed what many other field biologists considered "mission impossible"—the first study of a rare egg-laying mammal called the long-beaked echidna.

Researchers have what they think may be a basic recipe for capturing and maintaining indefinitely the most fundamental of embryonic stem cells from essentially any mammal, including cows, pigs and even humans.

When the Global Mammal Assessment project results are announced this week at the World Conservation Congress in Barcelona, Spain, there will be at least seven Texas species on the globally threatened list.

From majestic African elephants to tiny and often unappreciated rodents, mammals on Earth are in a state of crisis. One in four mammal species on Earth is being pushed to extinction, according to the Global Mammal Assessment, the most comprehensive assessment of the world's mammals.

Yale researchers have shown that the origin and evolution of the placenta and uterus in mammals is associated with evolutionary changes in a single regulatory protein, according to a report in Proceedings of the National Academy of Sciences.

Researchers at the University of California, Santa Cruz, have discovered a type of gene regulation never before observed in mammals--a "ribozyme" that controls the activity of an important family of genes in several different species.

The normal human genome contains 46 chromosomes: 23 from the mother and 23 from the father. Thus, you have two copies of every gene (excluding some irregularity in the pair of sex chromosomes). In general, which parent contributes a chromosome has no effect on the expression of the genes found on it.

The first analysis of the genome sequence of the duck-billed platypus was published today by an international team of scientists, revealing clues about how genomes were organized during the early evolution of mammals. The research was supported in part by the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health (NIH).

There’s no doubt about it ... the platypus is one odd duck-billed, egg-laying, lactating mammal. With adaptations like webbed feet to fit its aquatic lifestyle and the poison spurs that decorate males, the platypus represents for many a patchwork of evolutionary development.

A team of Filipino and American scientists have rediscovered a highly distinctive mammal ЁC a greater dwarf cloud rat ЁC that was last seen 112 years ago. Furthermore, it has never before been discovered in its natural habitat and was thought by some to be extinct.