Animals display these distinct instincts which keep them going:
1. Territorial instincts
2. Selfish survival instincts
3. Social survival instincts
4. Sexual instincts
Being overpowered by these instincts, the animals cant control their behavior.
But humans have a fifth instinct of analysis and derivation. This instinct is very powerful and versatile! It can easily mask the other four instincts also displayed by humans.
Now I seriously doubt Darwin and Lamarck! What was so special about early humans and their living conditions that the other species could not get even a trace of this fifth instinct?