island and map unlock levels

We used to get islands as we added species to our zoos. But now, you have to 'unlock' islands by getting zoomates.

Here's how it goes - 10 islands for now - is max. *rolls eyes*

1st – first island free	2nd – 5 Zoomates	3rd – 10 Zoomates	4th – 15 Zoomates	5th – 20 Zoomates
6th – 25 Zoomates	7th – 30 Zoomates	8th – 40 Zoomates	9th - 50 Zoomates	10th - 60 Zoomates

One of the best tools for customizing your zoo and making it reflect your own personality - are the maps ! Here's their corresponding levels, as well pictures w/prices.

Flatlands – level 1 (the original map)	Snow – level 1	Turtle Island – level 1
Butterfly Island – level 1	Plateaus – level 5	Snow Peak – level 10
Hippo Island – level 15	Mountain Mama – level 20	Great Falls – level 30