TDN169's picture

Off St Ives

Observed: 24th August 2012 By: TDN169TDN169’s reputation in Mammals

Possible Dolphin? Not sure.

Species interactions

No interactions present.


Syrphus's picture

If it was a dolphin or whale,

If it was a dolphin or whale, the +- rigid fin would be rapidly moving, and the animal would likely break the surface frequently. Basking Sharks move much more slowly, and rarely show the back, though usually the snout and tail-tip will be visible at times. The BS fin is floppy and the tail sweeps side-to-side (in dolphins it goes up-and-down). That should help you decide between shark and dolphin/whale, but not the species of dolphin which needs more than just the fin. My guess would be Basking Shark.



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