
Small genomes. Big protection.
Hypsibius exemplaris has a compact genome near 100 Mb Mb; Ramazzottius varieornatus is about 55 Mb and highly stress-tolerant.Tardigrade Genomes and Shield Proteins

DNA bodyguard.
The Dsup protein binds nucleosomes and shields DNA from hydroxyl radicals; in Ramazzottius varieornatus it also boosts repair under ultraviolet-C.Tardigrade Genomes and Shield Proteins