Pamela Anderson has refused to participate in the viral Ice Bucket Challenge, in which people dare one another to dump a bucket of iced water over their heads to raise awareness for Lou Gehrig's disease, or ALS.

The 'Baywatch' star, who is a long-standing animal rights activist, said the ALS Association has funded 'cruel' and 'outdated' animal testing.

"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... "I thought Instead I'd challenge ALS to stop Animal testing... Trying to cure human diseases by relying on outdated and ineffective animal experiments isn't only cruel - it's a grave disservice to people who desperately need cures," she wrote on her Facebook page.

She further added, "Please, help scientists make real progress toward treating and curing human diseases by visiting HumaneSeal.org to find and support charities that never harm animals and which pour their time and resources into advanced, promising, human-relevant cures."

Her post on the social-networking site has so far garnered more than 43,000 likes and almost 15,000 shares.