(Emphasis added.)
This is ridiculous. My two dogs have incredibly distinct ‘personalities’ – they couldn’t be more different in their behaviour and (expression of) liveliness – but there is no evidence that they can engage in rational, abstract thinking which, as others have pointed out, is fundamental to being a person. Thay they have distinct ‘personalities’ does not make them persons. This is confusion on a fundamental level by these scientists. Their statement in this respect is not one from science, but from personal (misguided) gut feeling.
Here is an excerpt from
Scientific American Mind Volume 25, Issue 3:
Many Animals Can Think Abstractly
Several species can think conceptually about the things they see
May 1, 2014 |By Andrea Anderson
Dogs, too, seem to have better than expected abstract-thinking abilities. They can reliably recognize pictures of other dogs, regardless of breed, as a study in the July 2013 Animal Cognition showed. The results surprised scientists not only because dog breeds vary so widely in appearance but also because it had been unclear whether dogs could routinely identify fellow canines without the advantage of smell and other senses. Other studies have found feats of categorization by chimpanzees, bears and pigeons, adding up to a spate of recent research that suggests the ability to sort things abstractly is far more widespread than previously thought.
scientificamerican.com/article/many-animals-can-think-abstractly/
Now regarding the topic “Scientists say dolphins should be treated as non-human persons”:
*
Hal Whitehead, who studies whale and dolphin social systems at Dalhousie University in Halifax, Nova Scotia, said dolphins are among the few animals known to live in multicultural communities, in which groups of individuals that have been taught to do things – such as catch prey – in different ways live together.
“**Whales and dolphins are at least as sophisticated as the nonhuman great apes”*
Whitehead said, noting that Japan has been a leader in gaining protections for monkeys and apes.
Because dolphins learn from one another, he said, major cullings can have a serious impact on surviving individuals’ ability to persevere. “When you remove a bunch of animals, you remove not only them but the knowledge that they have.”
The World Association of Zoos and Aquariums, which represents more than 12,000 zoos and aquariums globally, passed a resolution in 2004 prohibiting the procurement of cetaceans from dolphin drives. But a number of smaller enterprises, many of them in Asia, have reportedly continued to do so.
animalliberationfront.com/Philosophy/Morality/Speciesism/DolphinIQ.htm
actfordolphins.org/washington.html
William E. Evans, Ph.D. University of Notre Dame is also supporting act for dolphins.
actfordolphins.org/washington.html
Hope this helps. I am a researcher and examine more than 400 hundred scientific articles 5 days a week.

I love my job.
