A diplomatic dispute has ignited over the alleged “unlawful” arrest of well-respected Ukrainian biologist, Leonid Pshenichnov, aged 70. The Kremlin accuses Pshenichnov, a renowned Antarctica expert, of sabotaging Russia’s industrial krill trawling in the Antarctic. Pshenichnov has a long history of scientific research and conservation contributions, including advocating for marine protected zones in the region. Scientists are concerned for his health due to his age.