Sperm Conjugate from a Diving Beetle (image) University of Arizona Caption This is an image of sperm conjugate from the diving beetle, Hygrotus sayi. It is a composite image with three images taken at the same magnification. On the left is a darkfield image (heads and tails visible). On the right is the same conjugate viewed using epifluorescence (heads only). The inset shows an epifluorescence image (heads only) of the two sperm morphs that compose the conjugate. Credit Dawn Higginson, University of Arizona Usage Restrictions This visual may only be used in conjunction with reporting/posting of this news release. Image/video credit must be included exactly as indicated. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.