Volunteers are given training on how to help stranded animals
Three porpoises and two dolphins have been stranded on the Isles of Scilly in the past two weeks, according to a conservation charity.
Cornwall Wildlife Trust Marine Strandings Network said a young porpoise had been taken to Truro for a post-mortem examination.
One dolphin which was found alive was rescued by members of the British Divers Marine Life Rescue.
The network has recently trained 15 new volunteers on the islands.
"We couldn't have run the course at a better time," coordinator Jan Loveridge said.
"In the last two weeks alone, we've had five stranded animals - three harbour porpoises and two common dolphins.
"One of the dead porpoises was an 81cm [32ins] long, new-born calf that stranded on St Agnes."
It is thought the calf became separated from its mother and stranded alive.