惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

量子位
cs.AI updates on arXiv.org
cs.AI updates on arXiv.org
F
Fortinet All Blogs
博客园 - 聂微东
奇客Solidot–传递最新科技情报
奇客Solidot–传递最新科技情报
Hugging Face - Blog
Hugging Face - Blog
V
Visual Studio Blog
小众软件
小众软件
有赞技术团队
有赞技术团队
雷峰网
雷峰网
钛媒体:引领未来商业与生活新知
钛媒体:引领未来商业与生活新知
AWS News Blog
AWS News Blog
C
Cisco Blogs
美团技术团队
T
Threat Research - Cisco Blogs
C
CERT Recently Published Vulnerability Notes
人人都是产品经理
人人都是产品经理
宝玉的分享
宝玉的分享
Threat Intelligence Blog | Flashpoint
Threat Intelligence Blog | Flashpoint
酷 壳 – CoolShell
酷 壳 – CoolShell
Stack Overflow Blog
Stack Overflow Blog
W
WeLiveSecurity
D
DataBreaches.Net
博客园 - 司徒正美
Blog — PlanetScale
Blog — PlanetScale
IT之家
IT之家
云风的 BLOG
云风的 BLOG
Cyber Security Advisories - MS-ISAC
Cyber Security Advisories - MS-ISAC
Simon Willison's Weblog
Simon Willison's Weblog
Google DeepMind News
Google DeepMind News
T
The Blog of Author Tim Ferriss
Know Your Adversary
Know Your Adversary
NISL@THU
NISL@THU
OSCHINA 社区最新新闻
OSCHINA 社区最新新闻
The Cloudflare Blog
Vercel News
Vercel News
月光博客
月光博客
T
Tailwind CSS Blog
H
Help Net Security
aimingoo的专栏
aimingoo的专栏
P
Proofpoint News Feed
Application and Cybersecurity Blog
Application and Cybersecurity Blog
Spread Privacy
Spread Privacy
cs.CL updates on arXiv.org
cs.CL updates on arXiv.org
Cisco Talos Blog
Cisco Talos Blog
Microsoft Security Blog
Microsoft Security Blog
V
V2EX
WordPress大学
WordPress大学
Cyberwarzone
Cyberwarzone
Recent Announcements
Recent Announcements

Forbes - Innovation

Why Do Humans Have Fingerprints? Hint: It’s Not What You Think Booking.com Confirms Data Breach, Reservation PIN Codes Changed Why Major News Sites Are Blocking The Internet Archive’s Wayback Machine iPhone Fold Release Date: New Report Details Frustrating Apple News Comet Tracker: How To See Pan-STARRS And Three Planets On Wednesday NYT Mini Crossword Today: Tuesday, April 14 Hints And Answers Today’s NYT Strands Hints, Spangram, Answers: Tuesday, April 14 (It’s A Little Unclear) Today’s Wordle #1760 Hints And Answer For Tuesday, April 14 Most Of The Microplastics In Urban Air Come From Tires Today’s Wordle #1759 Hints And Answer For Monday, April 13 NYT Mini Crossword Today: Monday, April 13 Hints And Answers NYT Pips Today: Hints, Answers And Walkthrough For Monday, April 13 The YC Chief Who Codes 10,000 Lines A Day Has A Simple Secret Samsung Expands One UI 8.5 Beta To More Galaxy Owners Why You Should Stop Using Your iPhone If It’s On This List Chamath Says Firms That Treat AI As A Strategy Hand Rivals Their Edge 3 Unexpected Habits Of Secure Couples, By A Psychologist The First Lamp That Folds Your Clothes Samsung’s Disappointing Price Update For Galaxy Phone Buyers 3 Subtle Signs Someone Is Falling In Love With You, By A Psychologist Do Mantis Shrimp See More Colors Than Humans? A Biologist Explains NYT Connections Answers Explained For Monday, April 13 (#1,037) NYT Connections Hints Today: Monday, April 13 Clues And Answers (#1,037) LEGO Luigi & Mach 8 (72050) Review: 2026’s Best Set Yet? Marc Andreessen Says AI Productivity Will Trigger A Hiring Boom 3D Printing Is The Ultimate Hack To Reduce Household Spending Apple iPhone Fold: Striking Design Revealed In Leaked Photos Apple Smart Glasses: New Leak Reveals A Major Design Twist To Beat Meta Tested: The AI Coming To The Rivian R2 Quordle Hints Today: Monday, April 13 Clues And Answers Companies And H-1B Employees Endure Immigration Waits At Consulates 3 Easy Ways To Turn Anxiety Into Sustained Focus, By A Psychologist Here’s The Most Affordable Humanoid Robot You Can Buy Now UFC 327 Results: 5 Biggest Takeaways From A Wild Night In Miami UFC 327 Results, Bonus Winners, Highlights And Reactions Dana White Announces Huge New Fight For UFC White House Today’s NYT Strands Hints, Spangram, Answers: Sunday, April 12 (Get Ready) Tesla ‘Model 2’ Rises From The Ashes Today’s Wordle #1758 Hints And Answer For Sunday, April 12 NYT Pips Today: Hints, Answers And Walkthrough For Sunday, April 12 Tyson Fury Vs. Arslanbek Mahkmudov Results: Highlights and Reaction NYT Mini Crossword Today: Sunday, April 12 Hints And Answers How Shadow AI Culture Is Destroying Your Business Venture Capital Funds That Market Like Startups Win More Deals Conor Benn Vs. Regis Prograis Results: Highlights and Reaction Samsung’s Disappointing Price Update For Galaxy Phone Buyers Artemis Reached The Moon. The Grid Can Reach The 21st Century A Biologist Explains How Archerfish Shoot Down Prey. Hint: Their Aim Rivals Human Throwing Is It Time For Apple To Forget About The MacBook Air NYT Connections Hints Today: Sunday, April 12 Clues And Answers (#1036) Trump’s 2027 Budget To Reshape U.S. Environmental And Energy Policy CDC Delays Reporting Of COVID-19 Vaccine Benefits—Here’s What To Know Oura Has Designed A Solution To A Big Smart Ring Problem Netflix’s Best New Show Has A Near-Perfect 95% Rotten Tomatoes Score Coachella 2026 Is Being Taken Over By Creator Streams Quordle Hints Today: Sunday, April 12 Clues And Answers This Startup Wants To Use AI To Help Digitize History How To Get The Best Shield In ‘Crimson Desert’ Microsoft Venom Attack Targets C-Suite Executives ‘Maul: Shadow Lord’ Sets Even More Star Wars Rotten Tomatoes Records 3 Ways Happy Couples Argue Differently, By A Psychologist Success For Leapmotor Might Have Negatives For Stellantis New Names Surface As Potential Rogue And Wonder Woman In The MCU And DCU 4 Reasons Artemis Mission Matters Even If You Think It Is Wasteful Fast ‘Crimson Desert’ Patch Adds New Moves, Shield Hiding And One Great Feature Why Do Humans Blush? An Evolutionary Biologist Explains The Signal We Can’t Control Apple iPhone Fold: Striking Design Revealed In Leaked Photos Adobe Attacks Underway—Windows And Mac Users Given 72 Hours To Update iOS 26.4.1 Release: Crucial iPhone Feature Update Arrives, But No Security Fix Fury vs. Makhmudov Full Card, Ring Walk Times and How to Watch Can’t Stand Liquid Glass? This New Hidden iPhone Setting Is A Game-Changer Test-Driving The 2026 Changan Deepal S05: Italian Style Made In China NSA Warning—Reboot Your Internet Router Now Ways That Human-AI Collaboration Slides People Into ‘AI Brain Fry’ And Cognitive Downturns Stop Using These Networks—Google, NSA And TSA Warn NASA Changes Moon Plan: Landing Now Depends On SpaceX Or Blue Origin Samsung Expands One UI 8.5 Beta To More Galaxy Owners The Evolution Of Programmable Hardware At Xilinx NYT Mini Today: Saturday, April 11 Hints And Answers Today’s NYT Strands Hints, Spangram, Answers: Saturday, April 11 (You’re Putting Me On) Splashdown! NASA’s Artemis II Returns To Earth After Moon Mission Attention Is All You Need. The Human Kind Is Still The One That Counts Today’s Wordle #1757 Hints And Answer For Saturday, April 11 NYT Pips Today: Hints, Answers And Walkthrough For Saturday, April 11 Android Circuit: Galaxy S27 Pro Emerges, Honor 600 Pre-Order Offers, Pixel 11 Display Leaks Apple Loop: iPhone 18 Pro Leak, Urgent iOS Update, MacBook Neo Issues Morgan Stanley Has Mostly Positive Outlook On Tesla Robotaxi, FSD V15 Running Out Of AI Tokens Faster Than Ever? Here’s Why CoreWeave Shares Pop 13% After Anthropic Deal ‘Euphoria’ Season 3’s Rotten Tomatoes Score Crashes, Has Lost Key Player People Don’t Agree On What AI Can Do, But They Don’t Even Use The Same Product ‘Overwhelming’—Google Issues Gemini Update For Gmail Users NYT Connections Hints Today: Saturday, April 11 Clues And Answers (#1035) Quordle Hints Today: Saturday, April 11 Clues And Answers The Costly Dream Of Space-Based AI Infrastructure Can You See The Watcher In This ‘Daredevil: Born Again’ Shot? Adobe Attacks Underway—Windows And Mac Users Given 72 Hours To Update You Just Watched The Backdoor Pilot For ‘The Pitt: Night Shift’ Are Nicotine Pouches Like Zyn And VELO Safe To Use? A Doctor Answers Human Resources (HR) Is The Key To AI Success Per WalkMe ( SAP)
‘Cattoo Challenge’ Promotes Spay/Neuter In A Permanent Way
Jen Reeder, · 2026-05-09 · via Forbes - Innovation
Cute kittens at a spay/neuter clinic.

Animal shelters are inundated with kittens during the warmer months of "kitten season," when unspayed cats give birth to multiple litters.

Courtesy of Temma Martin

A former animal control officer is so passionate about the need to spay and neuter cats that he’s found a creative way to literally draw attention to it.

The “Cattoo Challenge” happened by chance, according to Daniel Ettinger, an instructor for animal welfare professionals and host of the “Keep It Humane” podcast. Back in December of 2023, Ettinger was teaching a course about how animal welfare is connected to human health and welfare at the Military Police School in Fort Leonard Wood, Missouri. Attendees included miliary police officers, veterinarians, veterinary technicians and social workers.

In the session on hoarding, Ettinger grabbed a dry-erase marker and scrawled a picture of two cats on the whiteboard. The idea was for attendees to calculate how many kittens the cats would have without spay/neuter surgeries to prevent reproduction — which would illustrate how quickly a caregiver could become overwhelmed by an influx of kittens.

Daniel Ettinger drew two cats on a whiteboard as part of an exercise to highlight how quickly intact cats can multiply.

Courtesy of Daniel Ettinger

“I go over to the whiteboard, and I just draw two cats on the board — stick figure drawings — and then we start doing the exercise,” he recalled. “One of the students just happened to say, ‘I’m going to get your cats as a tattoo.’”

Ettinger smiled at the nice sentiment but was surprised the next day when he was flying home to Southern California and got a text from the student. Sure enough, he and another student had taken a photo of Ettinger’s drawing of the two cats and had them tattooed on their legs.

MORE FOR YOU

After attending Daniel Ettinger’s course about animal welfare on December 12, 2023, two students had his drawing of two cats tattooed on their legs.

Courtesy of Daniel Ettinger

Another student wanted to follow suit. So a couple of months later when he was teaching another course, Ettinger went along to get ink of his own. While they were getting matching tattoos of the original cats, Ettinger wondered aloud about what would happen if he came back and someone else wanted to get the tattoo together.

“The student was brilliant,” he said. “He was like, ‘Since you’re teaching about spay and neutering and hoarding and all that kind of stuff, why wouldn’t you just have the person draw a kitten and you can add the kitten to your leg to help tell the story on why it’s so important to spay and neuter?’ And that’s how it was born.”

Daniel Ettinger gets a kitten tattoo as part of the Cattoo Challenge.

Courtesy of Daniel Ettinger

The Cattoo Challenge

The Cattoo Challenge is simple. Whenever someone gets a tattoo — aka cattoo — of the original two cats, they send Ettinger photo proof and a drawing of a kitten, and he gets it tattooed on his left leg. So far, 27 people have gotten the cattoos, so Ettinger’s left leg offers a permanent testament to the importance of spaying and neutering pets.

Daniel Ettinger’s leg is filling up with tattoos of kittens as part of the Cattoo Challenge.

Courtesy of Daniel Ettinger

It’s easy to get involved, since he posted a photo of the original cat drawings on his website at: keepithumane.com/cattoo. Most people scribble a photo of a kitten, but in an instance where a participant didn’t want to draw their own, one of Ettinger’s daughters drew a kitten that now adorns his leg.

He thinks it’s cool that so many people have already accepted the Cattoo Challenge and hopes others will get involved because spaying and neutering pets is so critical to addressing pet overpopulation and reducing intake at animal shelters.

“I would say spay and neuter is the heart and everything else are the arteries and the veins,” he said. “That's how I think is the best way to look at it.”

He noted that female kittens typically reach sexual maturity when they’re just 4-6 months old, so one litter of kittens can lead to exponentially more. In 2025, 58% of the 3 million cats who entered U.S. animal shelters were 5 months old or younger, according to Shelters Animals Count, a program of the ASPCA. Additionally, only 23% of cats entered shelters spayed or neutered last year.

Daniel Ettinger (right), smiles with animal control officers who accepted the Cattoo Challenge.

Courtesy of Daniel Ettinger

Spaying and neutering cats and dogs also provides health benefits, Ettinger added. For instance, spaying prevents uterine infections and decreases the incidence of breast tumors, while neutering prevents testicular cancer and some prostate problems, according to the ASPCA.

People who want to help support spay/neuter efforts but aren’t ready to get a tattoo can still support the Cattoo Challenge by donating to the Bissell Pet Foundation’s “Fix the Future” program to support spay/neuter clinics, Ettinger noted.

A Cattoo Challenge Participant

Temma Martin, founder of the Utah nonprofit Operation Pawpulation, which offers low-cost spay and neuter surgeries for dogs and cats, is a proud participant in the Cattoo Challenge. When there was a “flash tattoo” fundraiser in the summer of 2024 for the nonprofit Angel Paws Utah, she felt it was the perfect opportunity to simultaneously support two good causes.

After having the original cat drawings tattooed on her right forearm, she drew a picture of her family’s rescue kitten, Flash, for Ettinger to add to his leg.

Flash, Temma Martin’s rescue kitten, inspired a drawing as part of the Cattoo Challenge.

Courtesy of Temma Martin

“If anybody says, ‘Oh, that’s cute,’ I start a conversation. ‘Let me tell you what it means,’” she said. “And sometimes it leads to something meaningful like, ‘My neighbors have a pet that needs to be spayed or neutered.’”

She’s grateful that Ettinger found such a special way to help raise awareness of the importance of spaying and neutering pets.

“I feel strongly that it is time to bring spay/neuter back into the forefront of the animal welfare conversation,” she said. “Spay/neuter is the key to lifesaving. It’s prevention, and it allows shelters and rescues and individuals and fosters to focus very limited resources on the animals that are already here.”

Only 23% of cats entered U.S. shelters spayed or neutered in 2025.

Courtesy of Temma Martin

Operation Pawpulation recently celebrated its first anniversary, and has spayed and neutered over 1,800 cats and dogs. Martin has already been shocked this “kitten season” by how many cats — both pets and unowned “community” cats living outside — have been pregnant.

“In the last month, every female community cat has come into our clinic pregnant, lactating or in heat. Some days every female cat was pregnant,” she said. “We’re also seeing owned cats coming in pregnant. Some who go outside clearly met up with intact males, but many people who ‘rescue’ a couple of sibling kittens from someone giving them away, or keep a mama cat and son from a litter, find themselves with a female impregnated by a relative. Clearly cats don’t care.”

She noted that the nonprofit United Spay Alliance offers a free online tool where people can search by zip code to find low cost spay/neuter services across the United States.

Last year, 277,000 cats were euthanized in U.S. animal shelters, according to Shelter Animals Count.

Courtesy of Temma Martin

Ettinger is grateful to people like Martin who have participated in the Cattoo Challenge and hopes others will join the cause. In the future, he plans to sponsor a cattoo and said people can enter a drawing for a free cattoo by expressing interest through his Keep It Humane website.

Ultimately, he hopes the Cattoo Challenge continues to spread awareness of how spaying and neutering pets can help save lives — and he’s touched that others want to get involved despite his artistic abilities.

“All of it’s pretty cool,” he said. “It’s super endearing that people are putting my horrible artwork on their body.”