From the BBC: http://news.bbc.co.uk/2/hi/uk_news/england/sussex/8529761.stm

Springer spaniel survives 300ft fall off Sussex cliff

Volunteer lifeboat crew member Gavin Butcher with Poppy

Poppy was rescued by the RNLI after swimming to the beach

A springer spaniel survived a 300ft (90m) fall into the sea, after jumping off cliffs on the East Sussex coast to chase a seagull.

Poppy ran over the edge of the Seven Sisters cliffs at Brass Point during a walk, but managed to swim to shore and was picked up by a lifeboat crew.
The dog's owners, Kelly Ixer and Ben Markwick, from Ansty, said they were "indebted" to the lifeboat team.
Poppy was treated for a partially collapsed lung, but has now recovered.
She had been out walking with Mr Markwick's sister and her partner Stephen Winslade.
Mr Winslade, 31, said: "She ran to the edge and just disappeared.
"She is really well-trained and well-behaved, but I think she ran so fast there was no chance of her stopping.
"I threw myself down and looked over the edge and saw her paddling."