Use WeVideo or similar to make a documentary that discusses all three of your case study organisms and is approximately 10 minutes long.
one that has become extinct due to human activity
one that is critically endangered
one whose conservation status has been improved by intervention.
At a minimum, you should include:
Niche: Diet, habitat etc.
Red List status
Threats
Conservation strategies
Think about your audience - tell them stories about your species, and make it interesting to watch.