"Chameleons exposed to non-physical agonistic encounters lost approximately 5 more grams over the subsequent 48 hr period than those that were exposed to empty cages, an increase of approximately 42%"...
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0138007
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0138007
