Movie 2.
Hydractinia eggs are more buoyant than zygotes. Unfertilised egg (left) and fertilised zygote (right) sedimentation in real time through a 1 cm window.
Hydrozoan sperm-specific SPKK motif-containing histone H2B variants stabilise chromatin with limited compaction
Development 2023. 150:None-None; doi: 10.1242/dev.201058