Track Mangoes

On testing the toxicity of LSD-25 on animals during the late 1930s:

Cats, mice, chimpanzees, spiders, all weathered massive amounts of LSD-25 without apparent physical damage, although there was considerable behavioral oddity. Spiders, for instance, created webs of remarkable precision at low dosages, but lost all interest in weaving at higher ones. Cats exhibited a similar variability, ranging from nervous excitability to catatonia. But the most prophetic test, although no one realized this at the time, was with the chimps. One day [Ernst] Rothlin injected LSD into a lab chimp and then reintroduced the animal to its colony. Within minutes the place was in an uproar. The chimp hadn't acted crazy or strange, per se; instead it had blithely ignored all the little social niceties and regulations that govern chimp colony life.