Hunting:
Level 1: 0-2 prey
Level 2: 0-3 prey
Level 3: 1-4 prey
Level 4: 1-5 prey
Level 5: 2-6 prey

Foraging:
Level 1: 0-2 herbs and sticks
Level 2: 0-3 herbs and sticks
Level 3: 1-4 herbs and sticks
Level 4: 1-5 herbs and sticks
Level 5: 2-6 herbs and sticks

Healing;
Level 1: can heal minor injuries
Level 2: can heal minor illness
Level 3: can heal mediocre injuries
Level 4: can heal mediocre illness
Level 5: can heal everything that is known how to heal. Can also try to figure out how to heal unknown illnesses.

Fighting:
Level 1: 0-2 damage
Level 2: 0-3 damage
Level 3: 1-4 damage
Level 4: 1-5 damage
Level 5: 2-6 damage