How do your values influence your behavior? Objective Examine how own values and ethics influence their actions. Respect the values and ethics of others. Learn about laws established to protect Texas state threatened and endangered species. Background This lesson gives students the opportunity to examine their own values and ethics about the environment. In addition, this lesson states laws about wildlife with an emphasis on threatened and endangered species. Although the focus is on the state-threatened Texas tortoise, you are encouraged to substitute a local federal or state threatened or en Duration: 60 Minutes.