"I just couldn't believe what was happening in front of my eyes, it was a truly amazing experience I will never forget," said Mr Hinds, of Middlesbrough, who had been out walking his own two dogs. I thought the dog would die because there was nothing I could do to get to it. When the seal suddenly appeared from nowhere I wondered what it would do. It took a matter of seconds to save the dog. I don't know why the seal did what it did. I can't explain it."