Scientists Declare: Animals Are as Aware as Humans

By George Dvorsky,, via Discovery Channel

An international group of prominent scientists has signed The Cambridge Declaration on Consciousness in which they are proclaiming their support for the idea that animals are conscious and aware to the degree that humans are — a list of animals that includes all mammals, birds, and even the octopus. But will this make us stop treating these animals in totally inhumane ways?

While it might not sound like much for scientists to declare that many nonhuman animals possess conscious states, it’s the open acknowledgement that’s the big news here. The body of scientific evidence is increasingly showing that most animals are conscious in the same way that we are, and it’s no longer something we can ignore.

What’s also very interesting about the declaration is the group’s acknowledgement that consciousness can emerge in those animals that are very much unlike humans, including those that evolved along different evolutionary tracks, namely birds and some encephalopods.

“The absence of a neocortex does not appear to preclude an organism from experiencing affective states,” they write. “Convergent evidence indicates that non-human animals have the neuroanatomical, neurochemical, and neurophysiological substrates of conscious states along with the capacity to exhibit intentional behaviors.”

Consequently, say the signatories, the scientific evidence is increasingly indicating that humans are not unique in possessing the neurological substrates that generate consciousness.

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The group consists of cognitive scientists, neuropharmacologists, neurophysiologists, neuroanatomists, and computational neuroscientists — all of whom were attending the Francis Crick Memorial Conference on Consciousness in Human and Non-Human Animals. The declaration was signed in the presence of Stephen Hawking, and included such signatories as Christof Koch, David Edelman, Edward Boyden, Philip Low, Irene Pepperberg, and many more.

The declaration made the following observations:

  • The field of Consciousness research is rapidly evolving. Abundant new techniques and strategies for human and non-human animal research have been developed. Consequently, more data is becoming readily available, and this calls for a periodic reevaluation of previously held preconceptions in this field. Studies of non-human animals have shown that homologous brain circuits correlated with conscious experience and perception can be selectively facilitated and disrupted to assess whether they are in fact necessary for those experiences. Moreover, in humans, new non-invasive techniques are readily available to survey the correlates of consciousness.
  • The neural substrates of emotions do not appear to be confined to cortical structures. In fact, subcortical neural networks aroused during affective states in humans are also critically important for generating emotional behaviors in animals. Artificial arousal of the same brain regions generates corresponding behavior and feeling states in both humans and non-human animals. Wherever in the brain one evokes instinctual emotional behaviors in non-human animals, many of the ensuing behaviors are consistent with experienced feeling states, including those internal states that are rewarding and punishing. Deep brain stimulation of these systems in humans can also generate similar affective states. Systems associated with affect are concentrated in subcortical regions where neural homologies abound. Young human and nonhuman animals without neocortices retain these brain-mind functions. Furthermore, neural circuits supporting behavioral/electrophysiological states of attentiveness, sleep and decision making appear to have arisen in evolution as early as the invertebrate radiation, being evident in insects and cephalopod mollusks (e.g., octopus).
  • Birds appear to offer, in their behavior, neurophysiology, and neuroanatomy a striking case of parallel evolution of consciousness. Evidence of near human-like levels of consciousness has been most dramatically observed in African grey parrots. Mammalian and avian emotional networks and cognitive microcircuitries appear to be far more homologous than previously thought. Moreover, certain species of birds have been found to exhibit neural sleep patterns similar to those of mammals, including REM sleep and, as was demonstrated in zebra finches, neurophysiological patterns, previously thought to require a mammalian neocortex. Magpies in articular have been shown to exhibit striking similarities to humans, great apes, dolphins, and elephants in studies of mirror self-recognition.
  • In humans, the effect of certain hallucinogens appears to be associated with a disruption in cortical feedforward and feedback processing. Pharmacological interventions in non-human animals with compounds known to affect conscious behavior in humans can lead to similar perturbations in behavior in non-human animals. In humans, there is evidence to suggest that awareness is correlated with cortical activity, which does not exclude possible contributions by subcortical or early cortical processing, as in visual awareness. Evidence that human and nonhuman animal emotional feelings arise from homologous subcortical brain networks provide compelling evidence for evolutionarily shared primal affective qualia.

Read more about this here and here.

This story originally appeared on


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Lacie s.
Strigoi D3 years ago

Well here is an animal long believed to have possessed such a trait.

Daniel Perez founded the "Center for Bigfoot Studies" and started the popular Bigfoot Times newsletter, which he both edits and publishes. The newsletter is well known among Bigfoot investigators for its hard-hitting and sometimes controversial critiques.

Masahiko E.
.3 years ago


Winn Adams
Winn A4 years ago

No surprise here

Nickihermes Celine
Past Member 4 years ago

thank you for the great article 19-7

Rosemary H.
Rosemary H4 years ago

Folk here have always known this - the trouble being that too many other folk have criticized us for being 'anthropomorphic'. Some people here don't see the importance of a scientific declaration, but it is this; - we now have science on our side so cannot be so easily dismissed in future when we stand up for the rights of our fellow beings!

Julia R.
Julia R4 years ago

Animals do posses consciousness like humans and this makes the case stronger for animal rights especially farm animals who are treated so abhorrently in factory farms and in slaughterhouses! And what about bulls so cruelly treated in many Spanish traditions and animals sacrificed in terrible rituals which involve so much suffering and pain!

Michael Wecke
Michael Wecke4 years ago

Reading this article for the second time...brilliant! But yes, pet owners have known!

Cherry Grey
Cherry Grey4 years ago

Follow along as we begin to document the Life of Cherry Grey!

Melania Padilla
Melania P4 years ago

I´ve always believed this

Colleen Prinssen
Colleen Prinssen5 years ago

what about reptiles?