1. In other words, they gave no indication of an appreciation of either the range of ways in which rainforests are important or the complex social, economics and political factors which drive the activities which are destroying the rainforests. 2. One encouragement is that the results of similar studies about other environmental issues suggest that older children seem to acquire the ability to appreciate, value and evaluate conflicting view. 3. Baleen species studied at close quarters underwater - specifically a grey whale calf in captivity for a year, and free - ranging right whales and humpback whales studied and filmed off Argentina and Hawaii -- have obviously tracked objects with vision underwater , and they can apparently see moderately well both in water and in air. 4. Eye position in freshwater dolphin, which often swim on their side or upside down while feeding, suggest that what vision they have is stereoscopic forward and upward.