Britain's Catherine, Duchess of Cambridge smiles as she explores the Rainforest Biome as she visits the Eden Project in south west England on September 2, 2016. / AFP / POOL / Arthur Edwards (Photo credit should read ARTHUR EDWARDS/AFP/Getty Images)

Britain's Catherine, Duchess of Cambridge smiles as she explores the Rainforest Biome as she visits the Eden Project in south west England on September 2, 2016. / AFP / POOL / Arthur Edwards        (Photo credit should read ARTHUR EDWARDS/AFP/Getty Images)