We use a pure-clay, non-clumping litter for that reason. I hate the chemical smell of the clumping litters. I’ve also heard really great things about wood pellets.

Came here for this reply.

Thank you for this question and this reply, as I have wondered the same thing about testosterone levels and never thought of this part of the issue.

Chipmunks. I once went to a zoo in Chicago with someone who grew up in South Africa and he was more fascinated with the chipmunks running along the paths than with anything else at the zoo.