Some salamanders seem to have learned to recognize immobile prey when it has no smell, even in complete darkness.
sˌʌm sˈælɐmˌændɚz sˈiːm tə hæv lˈɜːnd tə ɹˈɛkəɡnˌaɪz ɪmˈoʊbaɪl pɹˈeɪ wɛn ɪt hɐz nˈoʊ smˈɛl, ˈiːvən ɪn kəmplˈiːt dˈɑːɹknəs.