Coloured scanning electron micrograph (SEM) of immature dog sperm. — Stock photos

"Coloured scanning electron micrograph (SEM) of immature dog sperm." is an authentic stock image by ScienceRF. It’s available in the following resolutions: 1600 x 1352px, 2600 x 2197px, 4750 x 4014px. The minimum price for an image is 49$. Image in the highest quality is 4750 x 4014px, 300 dpi, and costs 449$.