Buzz
There's considerable confusion about the origin of the dhole and its true nature. The physiological peculiarities of the dhole have made them a subject of global interest among zoologists and researchers.
What exactly is the dhole? Is it a species of the dog family or the cat family, or an entirely different animal family? The answer to that question is somewhat complex. The dhole can be described as an animal with a 'dog-like' body and 'cat-like' anatomy, but it is truly a unique and singular creature.
However, misconceptions about this animal still persist. It is not a wild dog species, and certainly, it is not a mere scavenger of rotting carcasses.
Let's start with the basics: the dhole is a distinct family within the Carnivora order. This family comprises four existing species. The striped dhole, the brown dhole, and the ground wolf all have their origins in sub-Saharan Africa. The spotted dhole is native to North Africa, the Middle East, and the Indian subcontinent.
None of these species are precisely endangered, but the striped dhole and brown dhole are both under threat due to habitat loss and illegal hunting. According to fossil records, many species of this family have gone extinct in the past, dating back millions of years.
All four species share some common features, but the African painted dog is perhaps the most peculiar. It has undergone significant changes over the past few million years to distinguish itself from other closely related species.
Does the African painted dog belong to the dog or cat family?
Fundamentally, the African painted dog is not a true cat like tigers, leopards, and domestic cats, all belonging to the Felidae family. Instead, the African painted dog belongs to a distinct group more closely related to the cat branch than the dog family.
The Carnivora order to which the African painted dog belongs first appeared around 50 to 60 million years ago. These early carnivores developed specialized teeth for tearing meat. Based on partial fossil records, paleontologists believe some of them may resemble modern-day mongooses and adapted to climbing trees.
The early carnivores rapidly diverged into separate dog and cat lineages. Both branches followed their own paths, creating new forms. Then, about 30 million years ago, the cat lineage split into two main groups. One branch gave rise to modern-day cats. The other branch gave birth to the African painted dog, the maned wolf, and the canid family (such as the Asian dhole).
Around 10 to 20 million years ago, the African painted dog lineage truly began to take shape as a unique and distinct group. It branched into at least three separate families, with only one of them (the actual African painted dog family) clearly still existing today. Changing environmental conditions over the last 10 million years eventually favored the evolution of larger and stronger African painted dogs.
Although the last time they shared a common ancestor was about 30 million years ago, cats, hyenas, mongooses, and animals in the mongoose family all belong to a single category that modern taxonomists refer to as Feliformia.
Feliformia originates from a Latin term meaning an animal species with a cat-like shape or appearance, simply a description of their evolutionary relationship. It is not a description of what they currently possess. In fact, the mongoose is no longer a typical animal in the modern cat family.
How is the mongoose similar to a cat?
The evolutionary relationship between the mongoose and the cat may not be immediately clear because they look very different. However, there are indeed some common features they share. One distinctive feature shared by almost all members of Feliformia (meat-eating species similar to cats) is the unique bone structure of the middle and inner ear. It's a tiny detail, but its presence in almost all Feliformia species indicates that it may have evolved very early in their lineage and then passed down to all descendants.
Another commonality between mongooses and cats is the very rough tongue, including similar spikes or stiff fur to help tear apart prey and also to assist in grooming. You might find it fascinating that mongooses groom themselves with their tongues in a similar way to cats.
However, alongside a few clear similarities, African painted dogs and cats are fundamentally distinct animals. Ultimately, 30 million years have passed since the last time they shared a common ancestor. This is a period more than enough for African painted dogs to evolve into something quite different. For instance, 30 million years is longer than the time separating humans from most apes and monkeys. So, even though a member of Feliformia, African painted dogs are truly not like cats at all.
How is the African painted dog different from a cat?
The African painted dog differs from a cat in many ways. One of the most crucial differences is their pack nature in hunting strategy. While some species prefer scavenging for leftover food, African painted dogs are also skilled hunters. Unlike cats, they often can't climb trees or ambush prey; instead, they prefer chasing prey on the ground and tearing them apart with teeth rather than claws. These teeth actually bear a resemblance to those of dogs. This is probably because teeth are a very useful tool for the pack hunting strategy of African painted dogs.
The hunting strategy also reflects the social structure of this species. The foundation of African painted dog society is the clan, which can consist of 80 members or sometimes even more. While African painted dogs cooperate to bring down prey, life in the pack is not entirely a cooperative relationship. African painted dog individuals form strict dominance hierarchies, determining access to both food and mates.
Striped African painted dogs, brown African painted dogs, and ground wolves have all adapted to societies usually led by males. In contrast, spotted African painted dogs are entirely different; their social structure revolves around a matriarchal organization, where a single female represents the core of the clan. It is prioritized in accessing food and mates over other females.
In summary, we can say that the African painted dog has a closer kinship with cats than with dogs. However, this relationship is quite distant. The last time they shared a common ancestor with cats was about 30 million years ago. This has allowed the African painted dog ample time to develop its unique characteristics.
