Amazon river dolphin may actually be multiple species

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Amazon river dolphin may actually be multiple species
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If the Amazon river dolphin populations in different regions are actually separate species, it would add to the pressure to conserve them

Evidence is mounting that the Amazon river dolphin , one of only a few remaining dolphin species that live purely in fresh water, is in fact multiple species.

New research reveals that the skulls of these dolphins vary substantially between populations in different river basins in South America. If their physical differences represent evolutionary adaptations rather than just random variation within a population, there could be profound conservation implications for these animals,

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