Scientists have restored movement to the hind legs of dogs with severe spinal injuries by injecting them with cells grown from the lining of their nose.
Jasper, a previously crippled dachshund, was described by his owner of "whizzing around the house" after undergoing the treatment.
The trial is the first to demonstrate effective spinal cord repair in "real life" injury cases, offering new hope for paralysed human patients.
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A rollercoaster has come off the rails at a theme park in Scotland, leaving eight children and two adults in hospital.
"I saw a lot of smoke come out from the tail-end of the aircraft. I wondered if it was normal, whether it was just exhaust fumes."
The House of Commons Petitions Committee has said they will keep an eye on the petition and are concerned about fraudulent signatures.