73.6 MB (2.9 MB compressed)
5041 x 5100 pixels
42.7 x 43.2 cm ⏐ 16.8 x 17.0 in (300dpi)
DR. PETER SIVER, VISUALS UNLIMITED / SCIENCE PHOTO LIBRARY DR. PETER SIVER, VISUALS UNLIMITED / SCIENCE PHOTO LIBRARY
Nostoc - This genus of blue green alga consists of unbranched filaments with heterocysts that become encased in a thick mucilage mass to form a colonial sphere that can reach the size of a baseball.
Model release not required. Property release not required.