LOL! I'm not sure what kind of women you might find in the reptile enclosure at the zoo, but hey it might be worth a shot! Could turn out quite interesting!
You learned already, don't go to bars to meet girls... or if you do, stay clear of the ones that want to go home w/ you that night. They're no good for the most part and might leave you with an itchy parting gift.
Do you have any hobbies that you enjoy? Golf, design, photography? Join a class or club and meet some new people, even if you meet a male friend, that's one more person in your network who may know somebody who knows a lovely single girl that you would be perfect for
Do you attend church? Often there are other singles in church that you probably already share similar values/beliefs/backgrounds with. Match made in Heaven? lol
Some friends of mine have signed up for online matchmaking services like Match or eHarmony. One had great luck and has a wonder boyfriend, a few others have been on dates, but not found anyone long-term yet. But everyone has said it was worth the monthly fee.
Just please don't become one of those grocery store lurkers. "Oh I see you like chicken noodle soup, well me too! We have so much in common - wanna go out sometime???" Nobody likes them! Creepers.