This 2008 video from Canada says about itself:
This baby harbour porpoise was found stranded on a beach near Victoria, British Columbia. The Department of Fisheries and Oceans brought her to the Vancouver Aquarium’s Marine Mammal Rescue Centre (MMRC), where she was immediately placed under 24-hour care. Originally injured and starved, the baby – named Daisy – couldn’t swim on her own and needed someone to hold her up. A creative volunteer made a special sling for her to rest in. Although her chances of survival were first expected to be less than 10%, Daisy has beaten the odds and is on the road to recovery. As of October 2, 2008, Daisy is still gaining weight and is swimming without her sling for most of the day. She’s even starting to dive and play with toys.
Translated from Ecomare museum on Texel island in the Netherlands:
Harbour porpoise Ella getting better – 10 December 2013
It’s been very exciting times for porpoise Ella, but fortunately, she is getting a lot better. The small toothed whale stranded on 18 October on the Texel beach. While being cared for by SOS Dolfijn it soon became clear that the porpoise had breathing problems. It turned out she had pneumonia. For more than two weeks, day and night, volunteers and staff supported her in the water because she could not swim herself. Now that the medication is working, things go well. Meanwhile, she swims all by herself.
- River Thames dolphins: Live updates as pod of five porpoises swim into central London (mirror.co.uk)
- Porpoises spotted swimming up River Thames in Westminster (standard.co.uk)
- Pod of porpoises spotted swimming up the river Thames near Westminster (metro.co.uk)
- Porpoises swim up River Thames (independent.ie)
- Nightjars on Texel island (dearkitty1.wordpress.com)
- Police eye pod of porpoises at Tower Bridge (yorkshirepost.co.uk)
- Porpoises swim up River Thames (belfasttelegraph.co.uk)
- River Thames dolphins: Tidal surges during huge storm ’caused five porpoises to swim into central London’ (mirror.co.uk)