Another treatment option is systematic desensitization, which focuses on gradually acclimating patients to their phobias. In the meantime Desideri helped his Capuchin co-religionists in acclimating to Tibet. Mamoru entrusts his poisonous jellyfish, which he has been acclimating to fresh water, to Nimura. Due to acclimating to the Boundary, Roy no longer needs Arakune to anchor himself. After acclimating to Earth, Kara becomes the superheroine Power Girl. Acclimating to a particular environment confers fitness advantages in that environment.