Dolphin

First book in the Gaia series.

Dell and Finn have lived in a G.A.I.A. Experimental facility since they were born. However, they aren't scientists. They're experiments. G.A.I.A. (Gene altering institute of America) is an organization that was founded for the purpose of engineering creatures to fight against something... but what? Dell and Finn have never met any other experiments, and they start to question G.A.I.A.'s motives. But even if they escape, they don't know what they're escaping into...