Octopuses pump blue blood through three separate hearts, a biological arrangement that depends entirely on copper rather than ...

Octopuses run on a cardiovascular system unlike anything found in vertebrates: two branchial hearts force blood through the ...

Red-blooded genealogists take note: The discovery in microbes of two oxygen-packing proteins, the earliest known ancestors to hemoglobin, brings scientists closer to identifying the earliest life ...

Hemoglobin, long celebrated for ferrying oxygen in red blood cells, has now been revealed to play an overlooked—and potentially game-changing—antioxidant role in the brain. "The key was to uncover ...

Webbed feet, flipper-like wings and unique feathers all helped penguins adapt to life underwater. But by resurrecting two ancient versions of hemoglobin, a research team has shown that the evolution ...

Three patients heterozygous for hemoglobin Seattle were found to be anemic, with hematocrit levels of 24 to 33 per cent. Urinary erythropoietin excretion was 1 to 4 units per day. This low value ...

The evaluation of new drugs designed to treat specific anemias should include a thorough understanding of underlying pathophysiology, with a focus on enhancing oxygen transport. In this concise review ...