Although this sightless juvenile spends much of its time sleeping, it has periods of hyperactivity during which it will dash about in a chaotic manner. Somehow, it never collides with obstacles in its path, instead leaping over or dashing around anything that gets in its way. It always seems hungry and will often beg for food even if it’s just been fed. In a laboratory setting, where they may have less room to exercise, care must be taken to not overfeed them.