A study led by biomedical scientist Erica Heinrich at the University of California, Riverside, highlights a critical gap in ...

Gray seals may possess a secret sense that helps them survive at sea. The marine mammals adjusted their time spent underwater based on the amount of oxygen in the air they breathed before diving, ...

A team of scientists with the Sea Mammal Research Unit, School of Biology, University of St Andrews, in the U.K. has found that gray seals are able to monitor their blood oxygen levels as a means to ...

Red blood cells carry oxygen from the lungs to all of the body's cells and carbon dioxide back to the lungs. The study, conducted at Karolinska Institutet in collaboration with Karolinska University ...