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October 7, 2025
4 min learn
See Stunning Feline Photography Revealing the Science of Cats
Tim Flach captures his fascination with the science of cats in gorgeous images from his new ebook Feline

Cats with pale blue eyes carry a mutation that forestalls colour pigments from forming and spreading by way of the physique earlier than beginning. In eyes with out pigments, mild can solely bounce off tiny stray particles within the iris that replicate solely blue mild’s very brief wavelengths.
Photographer Tim Flach’s new ebook is unusually private: it contains photos not solely of his cat—a regal orange-and-white former barn kitten named Loki—but in addition of his mind, because of MRI scans gathered as he checked out cute photos.
The photographer has devoted earlier books to horses, canines and endangered species—and shot pictures of songbirds for Scientific American—however had been hesitant to tackle the notoriously uncooperative felines. “My publishers from day one have been wanting me to do a cat book,” Flach says. “My problem was, how can I do a cat book and come out with dignity?” But he persevered, producing a ebook known as Feline (Abrams) that mixes his photos with textual content by Jonathan Losos, an evolutionary biologist at Washington University in St. Louis.
As the ebook got here collectively, Flach was fascinated to study what science is aware of—and doesn’t know—about felines of all types and the lengthy evolutionary historical past of cats. “Thirty million years back, we’d have recognized a cat,” he says, “whereas we wouldn’t recognize [human ancestors] somewhere, arboreally going up some tree.”
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READ MORE: Cats Are Perfect. An Evolutionary Biologist Explains Why
The ebook additionally nods to conversations about photograph manipulation and technology, together with by synthetic intelligence, as Flach and the remainder of us try to navigate a world of doctored photos.
“The problem in the past used to be just getting the cat to stay on the table,” he says. “Now the problem is proving it was ever there in the first place.”

This Persian cat named Atchoum became an Internet star due to his hypertrichosis, a situation that causes extra hair development and claw thickening. The situation extra usually happens in people—it may be both genetic or a aspect impact of sure medicines.

This picture reveals off the skills of athletic Savannah, a cross of the home cat with a small African cat known as a serval, nicknamed the “giraffe cat.”

Flach labored with a Devon Rex cat named Gobbilino—and a uncommon digital camera lens he says he needed to fly in only for the shoot—to seize this distinctive picture highlighting the tapetum lucidum, a sheet of reflective cells behind the retina of the cat’s eye. These specialised cells comprise crystals that replicate the sunshine that reaches them again into the retina, growing the quantity of sunshine the eyes can take in. The tapetum lucidum additionally produces the eerie “eyeshine” that makes a cat’s eyes seem to glow in the dead of night—that is the sunshine mirrored off the crystals that’s not absorbed by the retina. The picture additionally reveals how dramatically a cat can dilate its pupil, with the skinny golden ring of the iris circling its huge extent.

Feline contains photos of each beloved home cats and their wild compatriots, such because the Pallas’s cat (Otocolobus manul) pictured right here. These cats vary throughout Central Asia (they’re known as “manul” within the Kyrgyz language) and are specialised for all times in in chilly habitats, together with at elevations as excessive as 16,000 toes. The Pallas’s cat is about the identical dimension as a home cat however has significantly densely packed hairs which can be the longest of any feline species, which make it seem bigger. Another adaptation to their local weather is the small dimension of their ears, which reduces warmth loss.

Flach additionally traveled to South America’s large Pantanal wetlands to {photograph} maybe the area’s most regal resident: the jaguar (Panthera onca). The animals turned out to be surprisingly cooperative, Flach says. Traditionally nocturnal, these cats have recently turn into seen within the Pantanal through the day as a result of they’ve discovered the worth of searching native sunbathing reptiles known as caimans, he says. “I got more shots in a day than I did of the domestic cats,” Flach says of the jaguars he photographed.

A litter of six 10-week-old Devon Rex kittens. The breed, which some say impressed the cinematic alien E.T., is understood for expressive tail wags in addition to furry legs and ears. The kittens are born with an opulent “kitten coat” that they lose by round 11 weeks outdated, leaving them quickly bald till their grownup fur grows in.

Flach enlisted his assistant April Ironside’s cat Poppy, who enjoys ingesting from the tap, to point out off the feline tongue. Cat tongues are characterised by tiny spines known as papillae, that are made from the identical compound as human fingernails, keratin.

Flach has extensively photographed wild species, particularly for his earlier ebook Endangered. One of his core goals is connecting viewers with the pure world. “It’s not about a distant nonhuman world,” he says. “It’s about making it personal, characterful and relatable.”

All cats are cute, however some are significantly cute—equivalent to this Scottish fold named George, whose tiny ears and rounded face are exaggerated options that people discover interesting. (George seems in the identical part of the ebook because the scans of Flach’s mind as he seen child pictures.)

Gracing the quilt of Feline is a cat named Boy, who lives in Indonesia and has found Internet fame due to his facial markings, which give him the looks of a masked hero. “We’re unmasking what it is to be feline [in this book], and he seemed the perfect model,” Flach stated in a video on his website by which he shared the expertise of photographing the feline movie star. “Boy was pretty professional,” he stated. “I feel very, very lucky to have such a cool cat on the cover of my book.”
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This web page was created programmatically, to learn the article in its authentic location you’ll be able to go to the hyperlink bellow:
https://www.scientificamerican.com/article/stunning-cat-photos-reveal-feline-science/
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