Dogs News -- ScienceDaily Veterinary research and news on dogs as companions, canine health, wolf pack behavior and more. If it is news about dogs, you will find it here! A hidden world inside DNA is finally revealed DNA doesn?t just sit still inside our cells ? it folds, loops, and rearranges in ways that shape how genes behave. Researchers have now mapped this hidden architecture in unprecedented detail, showing how genome structure changes from cell to cell and over time. These insights reveal why many disease-linked mutations outside genes can still cause harm. The findings could speed up the discovery of genetic risks and inspire new ways to target diseases. 11,000-year-old dog skulls reveal a hidden origin story Dogs began diversifying thousands of years earlier than previously believed, with clear differences in size and shape appearing over 11,000 years ago. A massive global analysis of ancient skulls shows that early dogs were already adapting to different roles in human societies. This challenges the idea that dog diversity is mainly a product of recent breeding. Instead, it points to a long process of coevolution between humans and their earliest canine companions. Ancient wolves could only have reached this island by boat Scientists have uncovered ancient wolf remains on a small Baltic island where wolves could only have been brought by humans. These animals weren?t dogs, but true wolves that ate the same marine food as the people living there and showed signs of isolation and possible care. One even survived with an injured limb that would have made hunting difficult. The findings suggest humans once kept and managed wolves in ways far more complex than previously imagined. Scientists capture flu viruses surfing into human cells in real time Scientists have captured a never-before-seen, high-resolution look at influenza?s stealthy invasion of human cells, revealing that the cells aren?t just helpless victims. Using a groundbreaking imaging technique, researchers discovered that our cells actually reach out and ?grab? the virus as it searches for the perfect entry point, surfing along the membrane. Scientists discover hidden wolf DNA in most dogs Researchers studying thousands of canine genomes discovered that wolf DNA is still present in most dog breeds. This ancient genetic influence shows up in traits like body size, behavior, and environmental resilience. Even dogs bred far from wolves, including tiny chihuahuas, carry detectable wolf ancestry. The findings highlight how deeply intertwined the histories of dogs and wolves really are. Scientists studied 47,000 dogs on CBD and found a surprising behavior shift Data from over 47,000 dogs reveal that CBD is most often used in older pets with chronic health issues. Long-term CBD use was linked to reduced aggression, though other anxious behaviors didn?t improve. The trend was strongest among dogs whose owners lived in cannabis-friendly states. Plastic-eating bacteria discovered in the ocean Beneath the ocean?s surface, bacteria have evolved specialized enzymes that can digest PET plastic, the material used in bottles and clothes. Researchers at KAUST discovered that a unique molecular signature distinguishes enzymes capable of efficiently breaking down plastic. Found in nearly 80% of ocean samples, these PETase variants show nature?s growing adaptation to human pollution. Scientists stunned as island spider loses half its genome On the Canary Islands, scientists discovered that the spider Dysdera tilosensis has halved its genome size in just a few million years?defying traditional evolutionary theories that predict larger, more repetitive genomes in island species. This unexpected downsizing, revealed through advanced genomic sequencing, shows that despite its smaller DNA, the island spider is genetically more diverse than its continental relatives. It sounds creepy, but these scientific breakthroughs could save lives From mini-brains to spider-inspired gloves and wolf apple coatings, scientists are turning eerie-sounding experiments into real innovations that could revolutionize health and sustainability. Lab-grown brain organoids may replace animal testing, spider-silk gloves could create instant wound dressings, wolf apple starch keeps veggies fresh, and researchers even found microplastics lurking in human retinas?offering both wonder and a warning about the modern world. This flower smells like dying ants, and flies can?t resist it Vincetoxicum nakaianum tricks flies into pollinating it by imitating the smell of ants attacked by spiders. Ko Mochizuki stumbled upon this finding when he noticed flies clustering around the flowers and later confirmed their unusual preference. The study reveals the first known case of ant odor mimicry in plants, expanding our understanding of how diverse floral deception can be. Dogs can tell how toys work without any training Gifted dogs can categorize toys by function, not just appearance. In playful at-home tests, they linked labels like ?fetch? and ?pull? to toys?even ones they?d never seen before. The findings hint that dogs form mental concepts of objects, much like humans, pointing to deeper cognitive abilities. Bumble bees balance their diets with surprising precision Bumble bees aren?t random foragers ? they?re master nutritionists. Over an eight-year field study in the Colorado Rockies, scientists uncovered that different bee species strategically balance their intake of protein, fats, and carbs by choosing pollen from specific flowers. Larger, long-tongued bees seek protein-rich pollen, while smaller, short-tongued species prefer carb- and fat-heavy sources. These dietary preferences shift with the seasons and colony life cycles, helping bees reduce competition, thrive together, and maintain strong colonies. Scientists unlock the gene that lets bearded dragons switch sex Two independent research teams have unveiled near-complete reference genomes of the central bearded dragon, a reptile with the rare ability to change sex depending on both chromosomes and nest temperature. Using next-generation sequencing technologies from China and Australia, the projects uncovered the long-sought genetic basis of sex determination in this lizard. Trojan horse bacteria sneak cancer-killing viruses into tumors Scientists have engineered a groundbreaking cancer treatment that uses bacteria to smuggle viruses directly into tumors, bypassing the immune system and delivering a powerful one-two punch against cancer cells. The bacteria act like Trojan horses, carrying viral payloads to cancer?s core, where the virus can spread and destroy malignant cells. Built-in safety features ensure the virus can?t multiply outside the tumor, offering a promising pathway for safe, targeted therapy. Can humans regrow eyes? These snails already do Apple snails can fully regrow their eyes, and their genes and eye structures are strikingly similar to humans. Scientists mapped the regeneration process and used CRISPR to identify genes, including pax6, as essential to eye development, raising hopes for future human vision restoration.

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