Ursa Major (comics) become more feral and he begins to lose control over his human intelligence if he remains in his transformed state for several hours consecutively. Ursa Major was trained by the Soviet Military, and trained in the use of his powers by Professor Phobos, being a graduate of Professor Phobos's mutant training school. While transformed, Ursa Major possesses superhuman strength, stamina and resistance to physical injury to a much greater degree than an actual bear of similar size possesses. His strength is sufficient to allow him to engage in a one-on-one battle with The Hulk and survive. His senses are also
Ursa Major (comics) given the code name Ursa Major (though he is also known as 'Major Ursus'). The first mission of the Soviet Super-Soldiers was to investigate the contained radioactive area of Khystym known as the Forbidden Zone and to stop the Presence. There they encountered the Hulk, and discovered that their former teacher Professor Phobos was engaged in a project to radioactively contaminate all of the Soviet Union in order to foster the birth of more mutants whose powers he could eventually siphon. The Soviet Super-Soldiers, aided by the Hulk, thwarted Phobos's plan and brought him before the government to stand trial.