Actress Pamela Anderson has rejected her nomination to participate in the Ice Bucket Challenge for amyotrophic lateral sclerosis (ALS) awareness.

The former Baywatch star, 47, claimed on her Facebook page that she could not take part because experiments into treatments for motor nervous disorders have involved cruel animal testing.

Instead she posted a picture of herself in a skimpy top holding a handwritten sign saying ‘Stop animal testing’.

Miss Anderson wrote on Facebook: ‘Sorry – I can’t bring myself to do your Ice bucket challenge. I enjoy a good dare – It’s always good to bring awareness – in fun, creative ways. I don’t want to take away from that, but it had me thinking. Digging a bit deeper, I found that we may not be aligned – in our messages.

‘So I thought Instead I’d challenge ALS to stop Animal testing. Recent experiments funded by the ALS Association, mice had holes drilled into their skulls, were inflicted with crippling illnesses, and were forced to run on an inclined TREADMILL until they collapsed from exhaustion. Monkeys had chemicals injected into their brains and backs and were later killed and dissected.

‘What is the result of these experiments (other than a lot of suffering)?’