The transport of prehistoric specimens is handled through tranquilization and quick, safe wrangling and containment by Jurassic Park Animal Control staff. The smallest specimens can be transported using specially-designed carrier crates, while the larger animals are typically loaded onto one of InGen's custom-modified reinforced flatbed trucks. In order to avoid disturbing the animals or flow of traffic throughout the Park, transit of dinosuars and other hazardous material is done via the underground tunnel network which criss-crosses the entire island.