DEAR DR. FOX: Have the guidelines for spaying changed? Our vet advises us to wait until our pup is 1 year old, saying that hormones have beneficial effects for her bones. Any thoughts on this? -- L.A.... more

DEAR DR. FOX: I'm a retired communications specialist formerly associated with a major U.S. carrier. I read with some dismay the letter from your peer regarding nonionizing radiation risks from low-po... more

DEAR READERS: The COVID-19 pandemic has thrown the world -- already facing climate, population, refugee and political crises -- into turmoil. I have a detailed review of the pandemic and its effects p... more

DEAR DR. FOX: I adopted a 9-year-old female poodle a year ago. Aside from me, she won't have anything to do with anyone -- especially men. When my husband passed away two months ago, several of my fem... more

DEAR READERS: The agreement that was reached Nov. 13 at the COP26 Climate Change Summit in Glasgow is woefully inadequate. This is because of the last-minute inclusion of this troubling phrase: "... a... more

DEAR DR. FOX: Here is a clip of an article that mentions your research -- I am trying to locate the full article. Could you please help?... more

DEAR READERS: Our collective sequestering during the COVID-19 pandemic has brought most of us closer to our animal companions, and has us preparing our own meals rather than eating out. Such self-suff... more

DEAR READERS: The deaths of four reindeer from hemorrhagic fever at the Minnesota Zoo last year prompted the zoo to begin running vaccination test trials on susceptible captive species -- some 30 biso... more

DEAR DR. FOX: I read with interest your article on fish cruelty, and it brought to mind our experiences with fish in the Florida Keys.... more

DEAR DR. FOX: I respect your opinions on most all issues, and greatly appreciate your care and concern for animals. Here in south Florida, we have a tremendous problem with Bufo toads, which are highl... more

DEAR READERS: I have often raised the issue of how a One Health approach could have prevented the COVID-19 pandemic, and of how, if such an approach is not adopted internationally, future pandemics an... more

DEAR DR. FOX: I thought I'd ask you what you think about the Bureau of Land Management's roundups of wild horses. While I've always adored all animals (even worms as a young child), I never had a "thi... more

DEAR DR. FOX: The letter from "D.H., Ph.D., Tulsa," which you published and commented on approvingly, contains counterfactual statements that falsify its premise. The most egregious is the assertion t... more

DEAR DR. FOX: Several years ago, my sister suffered a cat bite and the cat was never caught. As a precaution, she went to the hospital for rabies shots.... more

DEAR DR. FOX: One often-overlooked cause of tachycardia (rapid heart rate) in animals, as well as of other heart arrhythmias and high blood pressure, is wireless radiation in the environment -- or att... more

DEAR DR. FOX: I am a licensed massage therapist who has been doing massage therapy on humans for over 25 years. I am semi-retired now, but would love to use my massage skills on animals on a volunteer... more

DEAR DR. FOX: I've been in the veterinary care business, including emergency, for going on 20 years now, and I want to caution your readers about one problem with Banfield as a veterinary care provide... more

DEAR READERS: Here is an update on the topic of declawing from our friends at All About Cats (AllAboutCats.com).... more

DEAR READERS: One Health is a collaborative strategy, supported by the Centers for Disease Control and Prevention, for achieving optimal health outcomes in light of the interconnectedness of domestic ... more

DEAR DR. FOX: I recently lost my dog. She was 16 years old. I really miss her. I have another dog who is 7, and he misses her, too. Both Chihuahua mixes. I've been looking around for a similar dog to ... more

DEAR DR. FOX: I have studied Earth processes for over 40 years as a geologist, both in R&D and commercial capacities. Most of my career, ironically, was spent as an explorationist in the fossil fuel i... more

DEAR DR. FOX: Your article on fish cruelty really hit home. I have always been an animal lover and advocate, but I was also a fisherman. Spring through summer I fished every chance I got. I always put... more

DEAR DR. FOX: Moments ago, I read your recent article wherein you included an exchange with "P.H., Ph.D.," from Seattle. As a theoretical particle and nuclear physicist with a heavy background in expe... more

DEAR DR. FOX: I just read your article on the possibility of chronic wasting disease (CWD) from deer being transmitted to humans. While it has not crossed that barrier yet, it goes far deeper than tha... more

DEAR DR. FOX: Thank you for writing that strong, factual column about Blue Pearl's misdeeds. It was exactly on the mark when it comes to assisting pet owners to make the wisest choices for their pets.... more

DEAR DR. FOX: I made your cat food recipe and I cannot get my cats to even taste it. What can I do or add to it? -- M.S., Trenton, New Jersey... more

DEAR DR. FOX: I just read an article about the lady who got overcharged for her sick dog's treatment. I had a similar thing happen to me this summer.... more

DEAR DR. FOX: I found an essay of yours, "Animal Suffering and the God Question," concerning what kind of god could create a world where there is so much suffering. Heavy writing, but brilliantly put.... more