Excellent research, and hopefully will help to preserve other endangered snail species. Although I must admit to worrying about the weight of the, admittedly tiny M3. Compared to a large voracious snail it is small, but a Monarch butterfly is going to have a hell of a time lugging one of those around the Gulf of Mexico.
https://monarchjointventure.org/monarch-biology/monarch-migration
Biting the hand that feeds IT
