Researchers have discovered a previously unknown virus infecting nearly a third of America's bald eagle population. Scientists found the virus while searching for the cause of Wisconsin River Eagle Syndrome, an enigmatic disease endemic to bald eagles near the Lower Wisconsin River. The newly identified bald eagle hepacivirus, or BeHV, may contribute to the fatal disease, which causes eagles to stumble and have seizures.
Read moreScientists surveying the birdlife of Borneo have discovered a startling surprise: an undescribed species of bird, which has been named the spectacled flowerpecker. While scientists and birdwatchers have previously glimpsed the small, gray bird in lowland forests around the island, the Smithsonian team is the first to capture and study it, resulting in its formal scientific description as a new species.
Read moreScientists have found a new species of choanoflagellate. This close relative of animals forms sheets of cells that 'flip' inside-out in response to light, alternating between a cup-shaped feeding form and a ball-like swimming form. The organism could offer clues about animals' early evolution.
Read moreDespite their important ecological role as decomposers, termites are often overlooked in research. Evolutionary biologists have constructed a new family tree for this unassuming insect brood, shedding unexpected light on its evolutionary history.
Read moreScientists who are trying to save species at the brink of extinction are finding help in an unexpected place. Researchers increasingly are embracing the power of ancient DNA from old museum specimens to answer questions about climate change, habitat loss and other stresses on surviving populations.
Read moreThe discovery of a nearly complete dromaeosaurid Saurornitholestes langstoni specimen is providing critical information for the evolution of theropod dinosaurs, according to new research.
Read moreBiologists have described a new species of praying mantis that displays the first documented example of conspicuous mimicking of a wasp among praying mantises.
Read moreThe roots of plants can do a lot of things: They grow in length to reach water, they can bend to circumvent stones, and they form fine root hairs enabling them to absorb more nutrients from the soil. A team of researchers has now identified an important regulator of this process.
Read moreBecause of imprinted preferences, strawberry poison frog females mate more with similar colored males, and less with differently colored males. Over time, the behavior could lead to two color types becoming separate species.
Read moreResearchers have reported that a bird species' ability to adapt to seasonal temperature changes may be one factor in whether it can better withstand environmental disruption. The researchers studied 135 bird species in the Himalayas and found that species living in the seasonal western Himalayas adapted to the conversion of forests to agricultural land better than birds native to the tropical eastern Himalayas. Results such as these could help conservationists better determine where to focus their efforts.
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