Are Fish As Intelligent As Crows | 水產百科網

2014年6月20日—Brownreviewednearly200researchpapersonfishsensoryperception,naturalcognitiveabilities(including“numerality,”oranabilityto ...

Whether they’re caught in the wild or raised in captivity, fish are a major food souce worldwide. Nearly 5 billion people worldwide got 15 percent of the animal protein in their diets from fish in 2011; for another 2.9 billion it was 20 percent. In 2011, that added up to about 132.3 million metric tons of fish.[1]

But the welfare of fish—which are vertebrates just like cows, pigs, and chickens, and possessing evolutionary lineages as long as those of homo sapiens—has been barely discussed. As a result “the potential amount of cruelty we’re inflicting is mind-boggling,” says fish biologist Culum Brown, an assistant professor at Macquarie University in Australia. “People need to have a greater appreciation of how smart fish are,” he says. “Just because we’re ignorant is no excuse to treat another animal poorly. All the evidence suggests that they...