Some 5,000 tardigrades, also known as water bears, and 128 baby glow-in-the-dark bobtail squid will be among the precious cargo heading to the station.
https://www.cnn.com/2021/05/26/world/iss-tardigrade-squid-experiments-scn-trnd/index.html
(Photo courtesy of Boothby Lab and Jamie S Foster)