Are Dogs or Cats More Closely Related: DNA, Fossil Record, and Behavior

In summary, the conversation discusses the question of whether humans are more closely related to dogs or cats based on behavior and DNA. It is suggested that historically, dogs were more useful to humans and were domesticated first as hunters. The question is then clarified to focus on evolutionary history and genetic similarity between species.
  • #1
snoopies622
840
28
Are people more closely related to dogs or to cats? Based on behavior I would guess dogs, but what does the DNA say? What about the fossil record? Anybody know?
 
Biology news on Phys.org
  • #2
Historically, dogs would have been more useful than cats. You have all sorts of breeds of working dogs. At best, cats would have been food. Also, I believe dogs were domesticated first when we were hunters.
 
  • #3
Thank you, but the intention of my question was not about the history of interaction between humans and dogs versus humans and cats, but about evolutionary history and the genetic similarity of the three species. In the sense that humans are more closely related to chimps than we are to jellyfish, are we biologically closer to dogs or to cats? I understand that at this point the answer may be unknown.
 

What is the difference between the DNA of dogs and cats?

The DNA of dogs and cats is quite similar, as they both belong to the Carnivora order and share a common ancestor. However, there are some key differences in their DNA sequences that distinguish them as separate species.

How does the fossil record support the idea that dogs and cats are closely related?

The fossil record shows that both dogs and cats evolved from a common ancestor, known as Miacis, which lived about 55 million years ago. Over time, this ancestor branched off into different species, including modern-day dogs and cats. Fossil evidence also shows similar physical characteristics between the two species, further supporting their close relationship.

Do dogs and cats exhibit similar behaviors?

Yes, dogs and cats show many similar behaviors such as hunting, grooming, and social behaviors. This is because they share a similar evolutionary history and have adapted to similar environments.

Are there any notable differences in behavior between dogs and cats?

While dogs and cats may share some common behaviors, there are also notable differences. For example, dogs are more social and tend to form stronger bonds with humans, while cats are more solitary and independent. Dogs also have a stronger pack mentality, while cats are more territorial.

Is there a definitive answer to whether dogs or cats are more closely related?

It is difficult to determine which species is more closely related, as both dogs and cats share a common ancestor and have evolved in different ways. Their DNA and fossil records provide evidence of their close relationship, but it ultimately depends on how one defines "closely related". In terms of behavior, both species exhibit similarities and differences, making it difficult to determine a clear answer.

Similar threads

Replies
8
Views
2K
  • Biology and Medical
Replies
15
Views
2K
  • Biology and Medical
Replies
3
Views
1K
  • Biology and Medical
Replies
5
Views
3K
  • Biology and Medical
Replies
8
Views
2K
Replies
1
Views
1K
Replies
2
Views
2K
  • Biology and Medical
Replies
15
Views
2K
Replies
7
Views
11K
  • Biology and Medical
Replies
2
Views
2K
Back
Top