All the News That's Fit to Bark!
Curiosity, with a wagging tail.
PhotographArchaeological finds from select European sites offer glimpses into possible relationships between people and dogs, while underscoring the challenges of interpreting ancient deposits.
PhotographOwner-led projects offer scale and real-world glimpses into canine minds, yet differences in tester identity and uncontrolled home settings can introduce systematic errors that large samples do not automatically cancel out.
PhotographDepartment of Defense. American Forces Information Service. Defense Visual Information Center. 1994 · Public domain
Penn State researchers once used MRI scans and computer simulations to map airflow inside a dog’s nasal passages, offering clues for designing better chemical sensors.
Reference imageAnna Bálint, Ádám Szabó, Attila Andics and Márta Gácsi · CC BY 4.0
Comparative fMRI studies show that dogs, like humans, have brain regions that react more strongly to vocalizations than to non-vocal sounds, with sensitivity to emotional tone cues.
PhotographResearch shows the number of functional olfactory receptor genes varies among individual dogs, breeds, and their wild relatives, with some patterns linked to physical traits rather than specialized sniffing roles.
Historical collection imageGenetic studies of prehistoric remains show that dogs diversified into multiple lineages early in their history with humans, while sharing a common root distinct from modern wolves.
Historical collection imageIsotope data and jaw shapes from Mesolithic through Chalcolithic canine remains show how dogs’ feeding patterns shifted alongside changes in human hunting and herding economies.
Reference image
PhotographStudies of young dogs and hand-reared wolves show differences in using pointing cues that appear early in development.
PhotographThis picture belongs to Xavier Caré. Please credit : Xavier Caré / Wikimedia Commons / CC-BY-SA. If you would like special permission to use, license, or purchase the image please contact me to negotiate terms. I'd appreciate if you could let me know about it or mail me ( xavier.carepm.me) if you want to use this picture out of the Wikimedia project scope. · CC BY-SA 4.0
Centuries of human-guided breeding have shaped canine eyes in ways that can affect vision and disease risk, though the details remain an active area of veterinary study.
Historical collection imageCamillo Golgi · Public domain
Studies using CT scans and MRI show that breeding for flatter faces in dogs has shifted the position of their olfactory bulbs, with possible effects on scent processing.
Historical collection imageNew DNA from roughly 15,000-year-old bones shows a widespread population of early dogs already living alongside humans across Europe and Anatolia during the Late Upper Paleolithic.
Reference imageKarl S, Boch M, Virányi Z, Lamm C, Huber L. · CC BY 4.0
Scanning awake canines offers a window into their neural responses, yet motion, small samples, and uncertain haemodynamic timing require careful reading of every result.
PhotographBehavioral studies reveal that dogs display familiar submissive signals more in response to owner cues than to any understanding of past misbehavior, highlighting the gap between human interpretation and measurable canine cognition.
PhotographExperiments on whether dogs understand what humans can see often point more to learned signals than to a full grasp of others’ perspectives.
PhotographStudies link the familiar head-cock mainly to dogs that are unusually skilled at learning object names, suggesting it helps with processing meaningful spoken words rather than general sound sharpening.
Reference imageLauren S. Aulet, Veronica C. Chiu, Ashley Prichard, Mark Spivak, Stella F. Lourenco, Gregory S. Berns · CC BY 4.0
Studies using fMRI and behavioral tasks reveal that dogs can spontaneously distinguish amounts, though their performance often differs from that of wolves and primates.
PhotographRecent studies of dog genomes show how closed breeding and popular sires have reduced genetic diversity and increased harmful variants in some lines, with clear examples in German Shepherds and Cavalier King Charles Spaniels.
Reference imageJunttila S, Huohvanainen S, Tiira K. · CC BY 4.0
Breed-level data show substantial genetic influence on certain cognitive factors, yet the picture remains nuanced and distinct from popular ideas of instant obedience.
PhotographStudies using minimum audible angle tests show dogs can localize certain noises with surprising precision, though results vary widely between individuals and don’t always outperform humans.
PhotographDogs see the world in fewer hues than people do, but that doesn’t make their vision black and white. A look at the evidence, its limits, and what it means for life with dogs.
PhotographMary Bloom, American Kennel Club · CC0 1.0
Even the most charming canine studies run into trouble when complex traits, tiny sample sizes, and shaky definitions get in the way.
Studies of methylation patterns in contemporary canids show clear distinctions that may relate to behavior and domestication, though direct evidence from ancient remains is absent.