The Lithuanian press widely reports that in 1933, Poška accompanied Oxford University professor Aurel Stein on an anthropological expedition to the Taklamakan Desert in Central Asia. However, in 1932-36, Stein explored Persia. In 1933-36, he participated in anthropological expeditions in Southeast Asia and the Himalayas, where he collected data about Shina-language speaking peoples of northwestern Himalayas. In 1935, Poška with a team of young scholars from the Indian Museum went for a three-month expedition to the Andaman and Nicobar Islands led by the Australian scholar Dr. M. E. Smith. They traveled to various parts of the archipelago and studied the local aboriginal tribes. Poška and his team gathered somatometric measurements and other anthropological data on the lifestyle, habits, and customs of the local inhabitants.