STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Threadworm, scanning electron micrograph (SEM). This is a nematode worm that is a parasite of the small intestines of numerous animals. It is also known as a roundworm and pinworm. Nematodes are unsegmented worms that may be parasitic or free-living depending upon the species. Magnification: x260 when printed 10 centimetres wide.
Model release not required. Property release not required.