In the near future, time travel is not only possible, it's a widely used tool for most major universities-including Wade's history class. But there are some limitations for the TOM (Temporal Observation Membrane). History can only be observed, and any interaction between the molecules of the past and the molecules of the present could cause unforeseen consequences. Which Wade learns about firsthand after a time-traveling field trip back to the Jurassic period, a hundred and sixty million years ago. Due to a glitch, he's looking a little green. Also, his fingers are merging, his nails are growing into claws, and a little nub at the base of his spine is quickly enlarging into an all-new appendage! Coupled with new womanly curves, Wade hasn't just transformed into a prehistoric animal; he's changed into a dino girl. Now he's got to deal with the curiosity of his friend, the adoration of an anthro-loving girl in his class, and the scientific interest of his teacher all while trying to continue a normal life...