Tiny creature, giant sperm
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2012/07/Notebook_072312_H-1.png?fit=860%2C460&ssl=1)
A dotted line shows the site of the sperm-moving structure called a Zenker organ in this microscope view of a Pseudocandona marchica ostracod. This tiny crustacean, a relative of shrimps and crabs, uses the organ to route extralong sperm.
s. Yamada and R. Matz ke-Karasz/Naturwissenschaften 2012