The tree of life is a metaphor which expresses the idea that all life is related by common descent.
ð ə WORD_BOUNDARY t ɹ iː WORD_BOUNDARY ʌ v WORD_BOUNDARY l aɪ f WORD_BOUNDARY ɪ z WORD_BOUNDARY ʌ WORD_BOUNDARY m ɛ t ə f ɔ ɹ WORD_BOUNDARY w ɪ t̠ʃ WORD_BOUNDARY ɛ k s p ɹ ɛ s ɪ z WORD_BOUNDARY ð ɪ WORD_BOUNDARY aɪ d iə WORD_BOUNDARY ð æ t WORD_BOUNDARY ɔ l WORD_BOUNDARY l aɪ f WORD_BOUNDARY ɪ z WORD_BOUNDARY ɹ ɪ l eɪ t ɪ d WORD_BOUNDARY b aɪ WORD_BOUNDARY k ɑ m ə n WORD_BOUNDARY d ɪ s ɛ n t WORD_BOUNDARY