Resumen de Two species with a yen to live as one
The dolphins of the Bahamas forage and play together and forge alliances--even though they belong to two distinct species. They're not the only example of mixed-species dolphin groups, but this level of interaction is unprecedented. These interactions likely evolved to allow the species to share space and resources and maintain a stable community, says Cindy Elliser at Pacific Mammal Research in Anacortes WA. She previously worked with Denise Herzing at the Wild Dolphin Project, which has been studying social ties between Atlantic bottlenose (Tursiops truncatus) and spotted (Stenella frontalis) dolphins in the Bahamas for 30 years. The observations suggest that the two species spend about 15% of their time together, says Elliser
