Northern white rhinoceros (Ceratotherium simum cottoni) sperm. Credit: San Diego Zoo Institute for Conservation Research. All rights reserved.
The Sperm Atlas is a sperm morphology database which highlights a portion of the sperm cells collected from animals at the San Diego Zoo and other organizations. It was created by the Reproductive Sciences team at the San Diego Zoo Institute for Conservation Research. The portal is maintained by the San Diego Zoo Global Library.