Female and male anglerfish -- Zebras and ostriches -- Cattle egrets and hippos -- Green sea turtles and Yellow tang fish -- Red-billed hornbills and Dwarf mongooses -- Honeyguide birds and Honey badgers -- Clownfish and Sea anemones -- Goby fish and Pistol shrimp -- Nile crocodiles and Plovers -- Ants and Aphids.