What is the most doubtful animal in the world?

The most doubtful animal in the world is often considered to be the cat, particularly due to its famously aloof and independent nature. Cats often display skepticism towards humans and other animals, frequently pausing to assess their surroundings before engaging. This behavior has led to the perception that they are contemplative and cautious creatures, embodying a sense of doubt about their environment. Their discerning nature and selective interactions contribute to their reputation as the most doubtful of animals.