hyaenodon, prehistoric creature, snarling, sharp teeth, taming process, human character, animal handler, confident posture, leather gloves, tranquilizer dart, forest background, dense foliage, soft ambient light, midday sun, dynamic angle, action scene, detailed fur texture, muscular build, survival theme, primitive tools, animal whisperer, cautious approach, eye contact, trust-building, animal intelligence, wilderness setting, realistic style, high-resolution texture, 3/4 view.