Image of Euglena, a protist with some animal (it moves about using a flagellum and can eat things) and plant (it can photosynthesise in its chloroplasts) characteristics. This makes it a favourite topic in biology classes.
Illustration ID: PROTOZOAN-EUGLENA-2
Russell Kightley
Illustration size: 16.8 Mpixels (48 MB uncompressed) - 4096x4096 pixels (13.7x13.7 in / 34.7x34.7 cm at 300 ppi)