Boric acid (borax) is definitely NOT safe for animals. Nor is it really safe for people. When used carefully around people who know not to mess with it, it can be used without harm. That does not mean it is not a dangerous substance, however. OSHA in fact classifies it as a hazardous material. Around people, boric acid can be used without harm. Since it is hard to convince your fuzzies not to play in it, sniff it, or taste it, I would NOT use it around them. Never, never assume that "natural" means "not dangerous". Belladonna is all natural, after all, as is fugu (pufferfish). That little sucker contains one of the deadliest nerve toxins known to man. Definitely natural, and definitely NOT safe. roger & the wolverine wannabees missing bear [Posted in FML issue 4085]