The bottlenose and spotted dolphins of the Bahamas are unusual in that they often intermingle. Now, observations show these unusual coalitions survived two deadly hurricanes. Afterwards the dolphin interactions were less aggressive, perhaps to allow them to adjust to post-disaster life. Image: sheilapic76
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It’s a social network like no other. 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. Image: harrisongavin18
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At first glance, blowing a bubble net to trap sardines is not the smartest move a dolphin can make. Bubbles reflect sonar signals better than sardines do, rendering the fish invisible and giving them a chance to escape. But mathematical tricks can get around this, and dolphins may naturally use them to locate the fishy signal amid the bubbles. Image: NOAA’s National Ocean Service
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