North American river otters eat, play and defecate in the same place. But their terrible food hygiene make them ideal for detecting future health threats in the environment, according to scientists. In a new study published Aug. 14, Smithsonian scientists analyzed the otters’ diets and “latrine” habitats in the Chesapeake Bay for the first time. They discovered river otters often eat food riddled with parasites—and that may not be a bad thing for the larger ecosystem.

Kyoto, Japan -- For many endangered species, population decline to the brink of extinction leads to inbreeding, exposing a species to deleterious recessive mutations that severely limit its potential to recover. But the red-headed wood pigeon, endemic to the Ogasawara Islands in Japan, followed a different trajectory.

Although this pigeon population fell to below 80 individuals in the 2000s, it began to increase markedly after the removal of an introduced predator, the feral cat. Such a remarkable recovery raised questions regarding inbreeding, and why harmful mutations that could cause inbreeding depression, or a loss of genetic diversity, didn't hinder the species' revival.

In an effort to unravel this biological puzzle, a team of researchers at Kyoto University set out to investigate the factors that contributed to this unlikely comeback.

Tuebingen, August 13, 2025. The DKMS Stiftung Leben Spenden is starting the new application round for the DKMS John Hansen Research Grant: up to four exceptional research projects by young scientists from around the world will be awarded funding of up to €240,000 each over three years. The projects to be funded should focus on hematopoietic stem cell transplantation and cell therapy for hematological diseases. Applications for the 2026 DKMS John Hansen Research Grant can be submitted until November 20, 2025.