In one experiment, when offered live fruit flies (Drosophila virilis), salamanders chose the larger of 1 vs 2 and 2 vs 3.
ɪn wˈʌn ɛkspˈɛɹɪmənt, wˌɛn ˈɔfɚd lˈaɪv fɹˈuːt flˈaɪz dɹˌɑːsəfˈɪlə vˈɪɹɪliz, sˈælɐmˌændɚz tʃˈoʊz ðə lˈɑːɹdʒɚɹ ʌv wˈʌn vˌiːˈɛs tˈuː ænd tˈuː vˌiːˈɛs θɹˈiː.