Genetic safety in numbers, platypus study finds

(Phys.org) -- Platypuses on the Australian mainland and in Tasmania are fighting fit but those on small islands are at high risk of being wiped out from disease, according to a University of Sydney study.

Namibia sponge fossils are world's first animals: study

Scientists digging in a Namibian national park have uncovered sponge-like fossils they say are the first animals, a discovery that would push the emergence of animal life back millions of years.

Grazing management effects on stream pollutants

Surface water quality is important for the proper function of aquatic ecosystems, as well as human needs and recreation. Pasturelands have been found to be major sources of sediment, phosphorus and pathogens in Midwest surface ...