As the climate changed over the past million years, areas of paramo around Andean peaks in Colombia grew and contracted, giving rise to species unique to this habitat. Today paramos continue to shrink, putting these species at risk.
For dogs with mammary tumors, deciding a course of treatment can depend on a variety of factors, some of which may seem to contradict one another. With a new, practical system developed by University of Pennsylvania veterinarians and colleagues, determining a prognosis and making treatment decisions should be an easier task.
An international team of scientists, led by Penn State researchers, have identified genes that may help farmers, especially ones in low- and middle-income countries, breed chickens that can resist one of the biggest disease threats facing poultry today.
Increasing the success of wildlife translocations is critical, given the escalating global threats to wildlife. The study highlights the influence of a species' social structure on translocation success, and it provides a template for incorporating social information in the rehabilitation and release planning process. Using elephants as a model, the study highlights the need to include animal social structure as an integral part of conservation plans, in order to assure better animal welfare and program success.
Scientists have given us another way to tell which endangered lemurs are most at risk from deforestation -- based on the bacteria that inhabit their guts. Researchers compared the gut microbes of 12 lemur species across the island of Madagascar, where thousands of acres of forest are cleared each year. The team found that some lemurs harbor microbes that are more specialized than others for the forests where they live.
When scientists subjected two-toned pygmy squid and bigfin reef squid to CO2levels projected for the end of the century, they received some surprising results.
Study concludes that the sexual selection hypothesis was the main reason for the high rates of infanticide among a community of chimpanzees in Uganda.
Fossils of a giant new species from the long-extinct group of sea creatures called trilobites have been found on Kangaroo Island, South Australia.
Scientists at The Graduate Center of The City University of New York and Brooklyn College have discovered seasonal changes in dopamine levels in the female plainfin midshipman fish's inner ear helps hearing sensitivity grow in the summer mating season, making her better able to hear the male's mating calls.
Migratory hoverflies are 'key' to pollination and controlling crop pests amid the decline of many other insect species, new research shows.