Dino Island

More money:
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Buy two dinosaurs and place them in an enclosure (one enclosure
for each dinosaur). Go to the lab and cross them. Make this as
cheap as possible. Store the egg in the cooler then sell it.
You can get it for 2,000 and sell it for 4,001.

Getting cheap dinosaurs:
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First, buy a dino and put it in a cage. Then, go to the lab and
clone it. Finally, go back to the lab and cross them together for
2000. There you have it, a cheap dinosaur.
(you can cros it as many times as possible.)