Since I don't have one yet (see list price below for an explanation), I can only tell you what I have seen (mostly on YouTube) and read. Unless you have perfected time travel, I'd say this is probably about as close as you can get to experiencing a real live dinosaur.
The movements on this thing are amazing! With fourteen motors, over 100 gears and a Krayton rubber skin, the range and appearance of every move is ultra-realistic. You will swear that you are playing with a real live Camarasaurus.
For the first 5 or 10 minutes after you turn Pleo on for the first time, he will act just like a newborn. He will be very slow and his "senses" are not yet fully developed. The more you interact with your new baby dino, the faster he will mature into an "infant." For the next 30 to 45 minutes, Pleo will beg to be fed and will start to explorer his new surroundings. He will begin to display a wider range of emotions. After this brief period, Pleo will then move onto his "juvenile" mode, where he will remain for the rest of his life. This is when the real fun begins.
Year Released: 2006
Power Supply: 7.2v rechargeable NiMH battery pack
Dimensions: 7½" high x 6" wide x 20½" long