Giant viruses have weaponised CRISPR against their bacterial hosts | New Scientist
▻https://www.newscientist.com/article/2197422-giant-viruses-have-weaponised-crispr-against-their-bacterial-h
Surprisingly, many of the giant phages also have CRISPR systems. CRISPR proteins have become famous for their use in genome editing, but they were first evolved by bacteria as a kind of immune system that targeted and destroyed the DNA of invading phages.