Russia trains combat dolphins for Ukraine war, UK officials say.

The UK Ministry of Defence has stated that it is "likely" that Russia has trained combat dolphins to defend its Navy base in Sevastopol, Crimea. The dolphins are believed to be trained to counter enemy divers. The Russian Navy has been enhancing security at its base in the city since last summer, with an increasing number of floating mammal pens likely housing bottlenose dolphins. Dolphins have been used by the US and Soviet Union during the Cold War for military purposes, including detecting underwater mines and enemy swimmers.