Responses of five small mammal species to micro-scale variations in vegetation structure in secondary Atlantic Forest remnants, Brazil
The Brazilian Atlantic Forest is highly endangered and only about 7% of the original forest remains, most of which consists of fragments of secondary forest.

Differential expression of WNT4 in testicular and ovarian development in a marsupial
Taken together, these data form a primary framework for understanding the evolution of the male sex-determining cascade in marsupials.

Naturally occurring and stress induced tubular structures from mammalian cells, a survival mechanism
The identification of cells that form tubular structures in response to stress.

Marsupial lion tops African lion in fight to death
Pound for pound, Australia's extinct marsupial lion (Thylacoleo carnifex) would have made mince meat of today's African lion (Panthera leo) had the two big hyper-carnivores ever squared off in a fight to the death, according to an Australian scientist.

Size matters: Preventing large mammal extinction
Saving large mammals such as elephants and rhino from extinction could be made more effective by focusing efforts on individual species as well as their habitats.

Why are lions not as big as elephants?
Carnivores are some of the widest ranging terrestrial mammals for their size, and this affects their energy intake and needs.

Sexual reproduction delays aging in a mammalian species
Past research on aging and the life histories of diverse species has shown that sexual reproduction is biologically costly for individuals and tends to decrease lifespan rather than increase it.

Winning by a neck — Giraffes avoid competing with shorter browsers
The giraffe's elongated neck has long been used in textbooks as an illustration of evolution by natural selection, but this common example has received very little experimental attention

Burrowing mammals dig for a living, but how do they do that?
Next time you see a mole digging in tree-root-filled soil in search of supper, take a moment to ponder the mammal's humerus bones.

The delayed rise of present-day mammals
It took 10 to 15 million years after the dinosaurs were wiped out before modern mammals-including our ancient human ancestors-were able to diversify and rise to their present-day prominence across the globe, a landmark new study has found.

New dwarf buffalo discovered by chance in the Philippines
First new fossil mammal from the Philippines in 50 years

Arctic marine mammals on thin ice
Experts outline primary risks of climate change to natives of the Arctic

DNA reveals hooded seals have wanderlust
Researchers have discovered a new fact about hooded seals, a mysterious 200 to 400 kilogram mammal that spends all but a few days each year in the ocean.

Paleontologists discover new mammal from Mesozoic Era
Animals shows intermediate ear structure in evolution of modern mammals

Researchers give name to ancient mystery creature
For the first time, researchers at the University of Alberta in Edmonton, Canada have been able to put a name and a description to an ancient mammal that still defies classification.

Why Sloths Do Not Sleep Upside Down
Several mammal species other than ruminants and camels have a multi-chambered forestomach - kangaroos, hippos, colobus monkeys, peccaries, sloths - but they do not ruminate.

How Mammals Learn To Recognise Their Mother
Following on from the work of ethologists such as Konrad Lorenz, biologists and psychologists have carried out a lot of research into how baby chicks and ducklings become attached to their mothers.

The role of the vomeronasal system in food preferences of the gray short-tailed opossum, Monodelphis domestica
A test on gray short-tailed opossums with items from four different food categories prior to occluding access to the vomeronasal organ

A web-database of mammalian morphology and a reanalysis of placental phylogeny
The author presented a graphical web-database of morphological characters focusing on placental mammals, in tandem with a combined-data phylogenetic analysis of placental mammal phylogeny.

UF science discovery raises questions about origin of African mammals
"Into Africa" rather than "Out of Africa" could well be the better description of how certain mammals originated and spread across the world