This is a video of Risso’s dolphins near Tenerife, Canary islands. Canary islands whales: here.
From the BBC:
Dead rare dolphin and whale found
The bodies of two “highly unusual” marine mammals have washed ashore in the Isles of Scilly.
Days later a Risso’s dolphin calf was discovered less than quarter of a mile away (about 402m).
The trust said, despite the sad death of both mammals, it provided a unique opportunity for local scientists to examine them.
See also here.