I've listened to the podcast and it was a treat. Ed was also able to isolate the chemical that ants lead behind when they're tracing back home from a food sour

I've listened to the podcast and it was a treat. Ed was also able to isolate the chemical that ants lead behind when they're tracing back home from a food source. When he dabbed it at the entrance of an ant colony, they exploded out of the burrow. For fun, he likes to write his name with the chemical, and the ants will follow it, tracing out his name.