A significant number of dogs at the Dogs Trust are struggling to find permanent homes, with 122 animals classified as 'Underdogs' having remained in the charity's care for at least six months, and some for several years. Experts suggest that unusual appearances, advanced age, and the need for additional training are common reasons these dogs are overlooked.

Jay McGuinness, Canine Rehoming & Welfare Manager at Battersea, noted that initial impressions, especially when viewing animals online, can be heavily influenced by looks. He cited black Greyhounds and other black dogs as examples of animals that may be passed over not due to their suitability as pets, but because their features are less distinct in photographs. This can lead to them not standing out as easily during online searches. However, McGuinness emphasized that misconceptions about a dog's age, size, and breed also play a considerable role.

Among the dogs seeking homes is Hamish, a four-year-old Great Dane crossbreed described as "sweet and goofy." He is an energetic dog who requires adopters capable of managing his strength and continuing his training, ideally a two-person household. Due to his habit of investigating with his mouth, Hamish needs a tidy home where objects can be kept out of reach while he settles in.

Rossi, a 10-year-old crossbreed with minor patellar luxation, is described by Dogs Trust as a "senior gentleman" requiring ongoing medical care. Chip, a young Akita Cross, is looking for adopters with experience handling large, high-energy breeds. Joe, a small four-year-old Chihuahua, is hoping to be rehomed with Amy, an 11-year-old Chihuahua, as he can be wary of new people but is loyal once comfortable. Joe is a tiny four–year–old Chihuahua on the lookout for a home with Amy, an 11–year–old Chihuahua

Data from Dogs Trust indicates that of the dogs in their care for over six months, 47% are large-sized and 39% are medium-sized. Older dogs are also frequently overlooked in favor of younger puppies, despite offering benefits such as requiring less exercise, often being fully house-trained, and possessing basic training skills. Lizzie Longlegs, a 10-year-old Saluki cross, is characterized as a "gentle soul." Lizzie Longlegs is a 10-year-old Saluki cross, who the Dogs Trust describe as a 'gentle soul'

McGuinness advises potential adopters to maintain an open mind, focusing on a dog's personality and needs rather than solely on age, breed, or appearance. He stresses that rescue organizations like Battersea conduct thorough assessments of each dog's unique temperament and home requirements, while also evaluating potential owners' lifestyles to facilitate suitable matches.

Separately, recent data from the Royal Kennel Club shows the most popular breeds so far this year, with Labrador Retrievers leading registrations, followed by Cocker Spaniels and Golden Retrievers. The study also noted a surprising surge in the popularity of Whippets, with registrations increasing by 18% year-on-year.