Animal Behavior & Training

Are Animals Conscious? Joy May Be the Missing Piece

For centuries, scientists and philosophers have debated the question: Do animals have consciousness?

Kathrine Schultz
By Kathrine Schultz 14. March 2025

Recent research suggests that the answer may lie in an unexpected place — joy.

From rats laughing to bees playing, evidence is growing that animals experience emotions in ways strikingly similar to humans.

What Is Consciousness?

Consciousness is often defined as the ability to have subjective experiences—what it “feels like” to be alive.

According to Jeff Sebo, a philosopher at New York University, consciousness includes sensory experiences like pain and pleasure, as well as emotional states such as joy.

If animals display behaviors linked to these emotions, it could indicate they are conscious beings.

Flipping the Script

Traditionally, scientists have assumed animals are not conscious unless proven otherwise.

However, some researchers argue that we should reverse this assumption and presume animals are conscious unless strong evidence suggests otherwise.

This shift could lead to more ethical treatment of animals and a deeper understanding of their cognitive abilities.

How Scientists Study Animal Consciousness

Researchers have long used pain markers — such as how animals react to injuries or avoid harmful situations — to determine consciousness.

But focusing solely on pain may be limiting. Instead, scientists are now looking at markers of joy as a way to assess consciousness.

Signs of Joy in Animals

Many animals exhibit behaviors that suggest they experience joy, optimism, and playfulness:

  • Laughter: Some animals, like rats, emit high-frequency vocalizations when playing, similar to human laughter.
  • Optimism: Studies show that animals given the chance to explore unknown environments react differently based on their emotional state. A more optimistic animal is more likely to explore.
  • Play: Many species, from dogs to bees, engage in playful activities that serve no direct survival purpose, suggesting they do it for enjoyment.
  • Physical Expressions: Wagging tails, relaxed facial expressions, and even certain brain chemicals like oxytocin and serotonin indicate positive emotional states in animals.

What This Means for the Future

If animals experience both pain and joy, it raises important ethical questions about how humans treat them.

Recognizing animal consciousness could reshape policies on animal welfare, research, and conservation.

Our team may have used AI to assist in the creation of this content, which has been reviewed by our editors.

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