Hi Cori, the packing of each animal is determined by many factors including what animals are being shipped, where the animals are shipping to and what the current weather is. Every individual order is checked and packing is determined by our specialized team who ships thousands of reptiles each week. We only ship our cold blooded animals via UPS Next Day Air and FedEx Priority Overnight. Other exotic animals including our mammals ship via American Airlines and Delta Airlines. If you have a specific question about shipping certain animals to you exact destination please give us a call at 954-428-8005. Thanks for your inquiry.