Octopods are the only invertebrate which have been definitely shown to use tools. At least four specimens of the veined octopus ("Amphioctopus marginatus") have been seen picking up discarded coconut shells, and then reassembling them to use as shelter.
ɑ k t ə p ɑ d z WORD_BOUNDARY ɑ ɹ WORD_BOUNDARY ð ɪ WORD_BOUNDARY oʊ n l i WORD_BOUNDARY ɪ n v ɜː t ɪ b ɹ eɪ t WORD_BOUNDARY w ɪ t̠ʃ WORD_BOUNDARY h ʌ v b ɪ n WORD_BOUNDARY d ɛ f ɪ n ə t l i WORD_BOUNDARY ʃ oʊ n WORD_BOUNDARY t ə WORD_BOUNDARY j uː z WORD_BOUNDARY t uː l z WORD_BOUNDARY æ t WORD_BOUNDARY l iː s t WORD_BOUNDARY f ɔ ɹ WORD_BOUNDARY s p ɛ s ɪ m ə n z WORD_BOUNDARY ʌ v ð ə WORD_BOUNDARY v eɪ n d WORD_BOUNDARY ɑ k t ə p ə s WORD_BOUNDARY æ m f ɪ ɑ k t ɑ p ə s WORD_BOUNDARY m ɑ ɹ d̠ʒ ɪ n æ t ə s WORD_BOUNDARY h ʌ v b ɪ n WORD_BOUNDARY s iː n WORD_BOUNDARY p ɪ k ɪ ŋ WORD_BOUNDARY ʌ p WORD_BOUNDARY d ɪ s k ɑ ɹ d ɪ d WORD_BOUNDARY k oʊ k ə n ʌ t WORD_BOUNDARY ʃ ɛ l z WORD_BOUNDARY æ n d WORD_BOUNDARY ð ɛ n WORD_BOUNDARY ɹ iː ʌ s ɛ m b l ɪ ŋ WORD_BOUNDARY ð ɛ m WORD_BOUNDARY t ə WORD_BOUNDARY j uː z WORD_BOUNDARY æ z WORD_BOUNDARY ʃ ɛ l t ə ɹ WORD_BOUNDARY