It's sad to see another specie go extinct even with all modern-day focus to prevent such an event. What's surprising is that the turtle had 40 years to mate, an

It's sad to see another specie go extinct even with all modern-day focus to prevent such an event. What's surprising is that the turtle had 40 years to mate, and I guess the team "in-charge" had 40 years chance to collect its sperm sample too. So why didn't they try to force-save the specie even if the turtle felt no sexual urge?