Hi-res online download not available. Delivery in 24 hours.
Title: Human Spermatozoa Fertilizing an Egg
Caption: Scanning electron micrograph of human spermatozoa fertilizing an egg in vitro. (X3500)
Credit: Album / Science Source / D. PHILLIPS
Image size: 4184 × 3352 px | 40.1 MB
Print size: 35.4 × 28.4 cm | 1647.2 × 1319.7 in (300 dpi)