Hello! I'm working on tarantula spiders (Family theraposidae) and my colleague is working on Wolf spiders. Our sampling site is in the island of Mindanao, Philippines in where long land travels are the usual cost for transportation (sometimes also includes travelling via sea) and we have repeatedly encountered the same dilemma, losing live specimens, especially the wolf spiders (70-100% mortality) and very small tarantulas (80-100% mortality; for bigger tarantula 30-50 % mortality ). And it really is a problem since there are specific species that we are unable to bring back alive in the lab and studying their behavior proves to be impossible because of this. With that, I hope I can ask help from those who have encountered the same problem yet managed to overcome it. What is/are your secret(s) if I may humbly ask? Your cooperation is highly appreciated! Thank you! :)

Note:

Our containers are small salad cups ( transparent cups with cover and tiny holes enclosed in a bigger plastic container with many holes) and land travels are usually 6 hrs- 12 hrs or more.