Dolphin

Dolphins a peaceful species of aquatic mammal plentiful in the waters of Abeir-Toril.

Combat
Dolphins were a rather peaceful species and generally would only attack if they or their young were threatened. When engaging in combat dolphins acted as organized units, taking commands from a central leader. In some cases they were willing to sacrifice their lives to protect the rest of their pod.

Ecology
About 10% of dolphins were known to live in organized communities with other species, such as swordfish and narwhals, and would actively work to drive evil creatures out of their territory. Such areas also tended to be devoid of sharks and killer whales.

They were the allies of the aquatic elves and particularly old and intelligent dolphins could be found living with them in Myth Nantar. They also held a distant interest in humans and would warn sailors of pirates or other aquatic threats, such as merfolk and sahuagin, and in some cases even come to their aid. They held great enmity towards the sahuagin as a whole, viewing them as a threat, and would often raid their communities and destroy their eggs.

Dolphins were sacred to the elven god Deep Sashelas and the deities Istishia and Valkur.

Bay of Dancing Dolphins
They could be found in the Bay of Dancing Dolphins in Dambrath where they could be seen performing the Dance of the Dolphins every evening at dusk. This display would attract spectators from all around Faerûn. The locals thought the dolphins were responsible for the calm waters of the bay. They were allies of the triton that lived in a hidden underwater city.