It is a follow up the Press Release on Feburuary 7, 2019.
https://www.nips.ac.jp/eng/release/2019/02/_dna.html

A group of researchers from Japan have discovered a new large DNA virus that may help scientists better understand the origins of DNA replication and the evolution of complex life.
 
The discovery of the Medusavirus holds clues to the evolution of more complex life. The paper published in the Journal of Virology earlier this year has been creating waves because of the ability of the Medusavirus to turn amoeba into “stone.” However, the bigger discovery is the possible relationship between the Medusavirus and the evolution of complex life. Tokyo University of Science has released a video, and an infographic, to explain this phenomenon.

Watch the Video Channel
https://www.nips.ac.jp/public_r/dotchannel/2019/05/post_16.html