Researchers track Otzi the Iceman’s last journey using moss

Otzi, a mummified body found near the Italy-Austria border, was initially thought to have died from freezing, but an arrowhead suggests he was killed. A study by the University of Glasgow found 75 species of mosses and liverworts with Otzi, indicating he traveled from lower elevations. Some mosses, like bog moss, may have been used for wound treatment. The presence of lowland mosses in his intestines suggests his journey through Schnalstal Valley.

What does the presence of bog moss in Otzi's colon suggest?

What elevation was Otzi found at, and what does this imply about his journey?