50.4 MB (50.0 MB compressed)
4618 x 3815 pixels
39.1 x 32.3 cm ⏐ 15.4 x 12.7 in (300dpi)
STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Bird red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (erythrocytes, red) from avian tissue. These cells contain haemoglobin, a pigment that allows them to carry oxygen around the body. Non-mammalian red blood cells (such as these) are oval (discoid) in shape and contain a cell nucleus. Human red blood cells are disc-shaped and do not have a cell nucleus. Magnification: x1500 when printed 10 centimetres wide.
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