Ua lilo ka ikehu makani i kekahi o na kumu ikehu maemae loa ma ka honua.No nā makahiki he nui, ʻo ka hapa nui o kā mākou uila mai ka lanahu, ka aila a me nā wahie fossil ʻē aʻe.Eia nō naʻe, ʻo ka hoʻokumu ʻana i ka ikehu mai kēia mau kumuwaiwai e hoʻopilikia nui i ko mākou kaiapuni a hoʻohaumia i ka ea, ʻāina a me ka wai.Ua lilo kēia ʻike i nā poʻe he nui e huli i ka ikehu ʻōmaʻomaʻo ma ke ʻano he hopena.