Investigations are ongoing by a marine conservation charity to identify a pod of killer whales spotted in the Western Isles.
A dwindling population of killer whales has been given a boost with the sighting of a baby.
A famed orca made a rare appearance in the Moray Firth at a location better known for its sightings of dolphins than killer whales.
Inquiries are being made by police in Shetland after two reports were received about boats travelling close to pods of orcas earlier this week.
This is the moment a sleekit seal defies the food chain and escapes from one of the ocean's most deadly predators just as it started to attack.
The killer whale found dead on a Hebridean beach this week was killed when it became entangle in fishing gear, a post mortem has revealed.