Humpback Whales: Ruzivo runonakidza nezve nzira yekuvhima, kuimba uye marekodhi. Chokwadi uye kurongeka, hunhu uye kuchengetedzwa mamiriro. Whale kutarisa mazano.
cetacea
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Amazon dolphin anowanikwa muhafu yekuchamhembe kweSouth America. Vanogara mumvura yakachena uye vanogara munzizi dzeAmazon neOrinoco.