Our Certified Cat Behaviorist, Mieshelle Nagelschneider CCBC, is the recipient of the Golden Purr Award for her contribution to cat behavior knowledge. Her latest study of animal behavior was at Harvard University.  She is the spokesperson and cat behavior expert for Comfort Zone and Arm & Hammer Cat Litter.  Her cat behavior expertise has been seen in the New York Times, The Today Show, NBC Dateline, MTV, Animal Planet, National Geographic, The Hallmark Channel, Modern Cat Magazine, Parade, Reader’s Digest, Cat Fancy Magazine, The New York Post,  The Boston Globe, USA Today, This Wild Life, The Divine Cat, Real Simple Magazine, Salon.com, Petside, Freekibblekat, The Toronto Star, Canada Globe and Mail, Animal Rescue Site, New Republic, The Daily Cat, Feline Wellness Magazine, Advisory Council Pet360.com, This Wild Life, The Cat Channel, Pets Magazine, The Circle, New Republic, The Sunrise Show, Yahoo.com, Herald Sun, Toronto Star, and countless others.  See our Media Room for the latest.

Her science-based cat behavior book has been featured in the New York Times and a best-seller on Amazon and published in 4 languages (Random House Publishing) and is a required curriculum by cat behaviorist certifying organizations.

As the International Cat Behavior Expert for Whiskas and welfarist for cats in the Philippines at The International Cat Association as The Cat Whisperer™, she has saved thousands of cats lives directly and indirectly through her lifetime of cat behavior work.  Along with Best Friend’s Animal Society and Stray Cat Alliance in L.A. as a welfarist for cats and as their guest speaker, The Cat Whisperer™, Mieshelle has educated cat owners on cat behavior issues.  As a cat behaviorist and personality, she has traveled the globe (read 173 testimonials of cats’ lives she’s changed worldwide) as an international cat behavior lecturer to Australia, Philippines, Canada, and Costa Rica.  and major cat brand spokesperson nationally and internationally.  She has been the guest lecturer for international Humane Society and SPCA behavior conventions educating hundreds of veterinarians, shelter workers, and cat owners on behavior issues in cats to improve the lives of cats and their owners, too.

Cat behaviorist

“Over the course of many years, Mieshelle has developed and refined her unique ability to think like a cat.  On numerous occasions I have witnessed the life-changing benefits Mieshelle’s techniques can bring to cats and their sometimes very frustrated owners.” Dr. James R. Shultz  DVM

“I wish I read The Cat Whisperer book before I started filming Must Love Cats. The cats would have liked me a lot more.” From John Fulton – Animal Planet’s Must Love Cats

Working with a cat behaviorist that has formal education in animal behavior is a vital component in solving any cat behavior issue.  Without a behavior plan that is carefully created drawing from current research on cat behavior to appropriately address all the critical components and factors of a presenting behavior, is like trying to conduct a symphony without sight or sound.  At The Cat Behavior Clinic we practice responsible and ethical behavior care for cats, have a licensed veterinarian and also a cat behaviorist C.A.T. Counselor that also has formal study in cat behavior.

Mieshelle and Dr. Jim Shultz can solve your cat’s behavior issues with a behavior plan designed for your cat(s) that include the latest scientific research and advanced techniques (found only here) that have helped thousands of cats and their owners.  Litter box elimination issues, urine marking, excessive meowing, inter-cat social and aggression issues, are her specialty.  Mieshelle has formal study in animal behavior, conducted cat behavior studies, and has authored a science-based and the first scholarly cited cat behavior book with the latest strategies to help cats.  Mieshelle is also known for solving cat behavior issues that are deemed “unfixable”.

Mieshelle is a long time member of the Animal Behavior Society, International Association of Animal Behavior Consultants, Cat Behavior Counselors, and Professional member of the Association of Animal Behavior Professionals.  She has studied cat behavior for decades, and she continually keeps abreast of and takes part in observational and controlled studies on cats which has enabled her to provide behavior plans and techniques that other behavior experts are unable to replicate and provide for their clients. Mieshelle has arguably logged more hours helping cat owners solve behavior issues than any other animal behaviorist or veterinarian in the world along with an unrivaled number of testimonials since 1999. More testimonials

She is referred by and worked with veterinarians, cat shelters, and even wild-cat sanctuaries from England to North America to Australasia.   She has also performed much needed cat studies for Hammacher Schlemmer on advanced litter box technologies and perching and resting areas for cats.

She has worked with thousands of cat owners and vets, and among the clients who follow her advice, including her proprietary C.A.T. Plan®, her success rate is 90% or better. Read our clients’ success stories and see why the Clinic is your best chance of stopping all behavior problems now and future ones from occurring (very important!). You can also read Mieshelle’s charming story of how she became a lover and observer of animals, nearly 40 years ago, in her Life Among the Animals (excerpt from her cat behavior book — Random House Publishing).

One very crucial component in treating some cat behavior issues is ongoing help after the initial consultation.  Because appropriate and sound behavior advice for a specific cat is not one-size-fits-all, continued correspondence with your behaviorist is possible at The Cat Behavior Clinic.

Mieshelle is a popular resource for many cat-only veterinary practices nationwide, many wild cat sanctuaries, and countless animal shelters needing expert advice on feline behavior, which she usually donates her time to. Mieshelle has worked professionally with thousands of domestic house cats, wild, and feral cats. She was one of the referred Feline Behavior Consultants for Animal Aid and The Cat Adoption Team of Oregon, a 350-cat no-kill shelter, many medical vets nationwide, and is a Guardian Angel for cats with emotional and physical needs at Best Friends Animal Sanctuary.

Oh, and Nagelschneider is her real name — it’s German for “nail clipper,” and we’re not making that up. She is known for her “uncanny” ability to trim some of the most difficult cats’ nails and help their owners do the same.  she is also and active supporter of the new anti-declaw film, The Paw Project, by veterinarian Jenny Conrad.  She just testified along with The Paw Project team on the anti-declaw bill at the state capitol in 2015 to end cat declawing.

Featured in The New York Times and a best-seller on Amazon, Mieshelle’s breakthrough science-based book on her C.A.T. Plan system for solving and even preventing all feline behavior problems, The Cat Whisperer (Random House Publishing with co-author Cameron Powell), is available online or in bookstores now!

why do cats lick peoplecat pooping outside litter box


cat peeing outside litter box
2005– Mieshelle with Lynn Hoover, President of the International Association of Animal Behavior Consultants

Recent STUDY:

  • Harvard University –  2007 study in animal cognition toward citation
  • Current social facilitation study and domestic felines — 2007 – PRESENT
  • Perching and resting areas of the domestic feline 2009
  • Advanced litter box technologies and usage of the domestic feline 2008