The invading algae filaments can be a twentieth of a millimeter—similar to the width of a human hair—and the symbiotic ... the Benthic Underwater Microscope, the first instrument powerful ...

Sloth hair is unique among mammals in that it contains microcracks, making it perfectly suited for algae growth. In fact, when viewed under a microscope, you can see algae living inside the cracks.

The hair bases are seen in the centre of the image, inside the dome-shaped entrance. Mr Siwanowicz also won third prize for his artful image of green algae desmids. This year’s winners come from ...

where Dr Eileen Bresnan identified the coccolithophore using an electron microscope. The tiny cell is just five micrometres in diameter. A human hair is about 80 to 100 micrometres The algae have ...