Really amazing exhibition takes about an hour if you look at everything but you can spend longer reading all the details.  I love science and majored in biology in college.  I studied lots of text books and 3D models of physiology and anatomy, but that can't compare with this amazing perspective.  Besides being entertaining and unique, this gave me an increased respect and gratitude for my body, made we want to take care of it even more, just to see all the wonderful little details.  If you can do this, I recommend it.  We got the discounted tix at Tix4Tonight which are good for 7 days.  Checked in on yelp for the the free audio tour as we walked up.  (yes it is fine to share one for two people, just hold it aware from you ear.  Not everything has an audio component, and objects are pretty well labeled with interesting little facts so it isn't necessary- You will just have to do a lot more reading if you don't get the audio tour.  So if you are tired after a day of hiking like we were, get the audio tour.   Titanic is steps away so maybe combine them.  We parked in the back, covered, free, self-parking and it was a pretty close walk right up to this show! Nice.