When you send out a rescue team for your escaped dinosaur, they will not be able to generate any coins, or participate in battle while they're out retrieving your lost dinosaur. You can view the remaining time for the retrieval in your Events menu where your missions are located, and from there you can speed up the recovery with dino bucks if you'd like your dinosaur to come back right away.
Why are my dinosaurs unavailable for battle?
Last Updated: 349d