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Fie că este vorba despre osul cozii (coccisul), despre pielea de găină sau despre tendonul straniu de pe partea interioară a încheieturii, corpul uman este acoperit cu elemente care nu ne mai servesc la niciun scop.
Chiar şi asa, aceste trăsături există încă pe organismului uman ca o relicvă genetică din trecutul nostru evolutiv. Acelaşi lucru este valabil şi pentru multe alte animale, drept exemplu pot servi şi aripile la struţ. Acestea sunt numite caracteristici „vestigiale”.
Video-ul de mai jos, realizat de Vox, prezintă şi explică câteva dintre aceste trăsături vestigiale pe care nici măcar nu ştiai că le ai.
Sursa: IFL Science
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