In the Collection of Scientific Papers “Marine mammals of the Holarctic”, printed in 2018, 2 articles by the members of the “Finval” Research Center were published. The first article: “Haulouts of the Laptev walrus in the western part of the Laptev Sea” (by A.R. Semenov) is the result of the study of the Laptev subspecies of walrus during 3 research expeditions. For the first time since the description of the subspecies by Chapsky (1941), extensive information on the distribution, abundance, sex and age structure of this subspecies in the western part of the Laptev Sea has been collected. The second article: “Encounters of marine mammals in the coastal zone of the eastern part of the Kara Sea” (by A.R. Semenov A.R., S.S Evfratova) is the result of expeditions in 2016-2017, when the research routes covered 4083 km. of the waters of the Kara Sea. You can read the articles (beginning on pages 289 and 297) here: