Animal Intelligence

As an artificial intelligence researcher I've always been fascinated by animal intelligence. It's simpler to understand than human intelligence, but often quite sophisticated in species-specific ways. Here's a National Geographic article about animal minds and various flavors of animal intelligence, and while it's quite fascinating I find it to be rather limited by its insistence on evolution as the mechanism behind the observed commonality.

But if animals are simply machines, how can the appearance of human intelligence be explained? Without Darwin's evolutionary perspective, the greater cognitive skills of people did not make sense biologically. Slowly the pendulum has swung away from the animal-as-machine model and back toward Darwin. A whole range of animal studies now suggest that the roots of cognition are deep, widespread, and highly malleable.

It's almost as if there were some common intelligent creator behind it all!

"Dogs' understanding of human forms of communication is something new that has evolved," Kaminski said, "something that's developed in them because of their long association with humans." Although Kaminski has not yet tested wolves, she doubts they have this language skill. "Maybe these collies are especially good at it because they're working dogs and highly motivated, and in their traditional herding jobs, they must listen very closely to their owners."

Scientists think that dogs were domesticated about 15,000 years ago, a relatively short time in which to evolve language skills.

Maybe dogs were designed for a purpose?

"People were surprised to discover that chimpanzees make tools," said Alex Kacelnik, a behavioral ecologist at Oxford University, referring to the straws and sticks chimpanzees shape to pull termites from their nests. "But people also thought, 'Well, they share our ancestry—of course they're smart.' Now we're finding these kinds of exceptional behaviors in some species of birds. But we don't have a recently shared ancestry with birds. Their evolutionary history is very different; our last common ancestor with all birds was a reptile that lived over 300 million years ago.

"This is not trivial," Kacelnik continued. "It means that evolution can invent similar forms of advanced intelligence more than once—that it's not something reserved only for primates or mammals."

Some will object that my belief in a creator is somehow not scientific, but anthropomorphizing the process of evolution such that it can "invent" characteristics isn't far different.

Kacelnik and his colleagues are studying one of these smart species, the New Caledonian crow, which lives in the forests of that Pacific island. New Caledonian crows are among the most skilled of tool-making and tool-using birds, forming probes and hooks from sticks and leaf stems to poke into the crowns of the palm trees, where fat grubs hide. Since these birds, like chimpanzees, make and use tools, researchers can look for similarities in the evolutionary processes that shaped their brains. Something about the environments of both species favored the evolution of tool-making neural powers.

Or, again, perhaps these species were designed for their niche -- a possibility that is as interesting and testable as evolution.

"Elele just loved to be right," Herman said. "And she loved inventing things. We made up a sign for 'create,' which asked a dolphin to create its own behavior."

Dolphins often synchronize their movements in the wild, such as leaping and diving side by side, but scientists don't know what signal they use to stay so tightly coordinated. Herman thought he might be able to tease out the technique with his pupils. In the film, Akeakamai and Phoenix are asked to create a trick and do it together. The two dolphins swim away from the side of the pool, circle together underwater for about ten seconds, then leap out of the water, spinning clockwise on their long axis and squirting water from their mouths, every maneuver done at the same instant. "None of this was trained," Herman says, "and it looks to us absolutely mysterious. We don't know how they do it—or did it."

If that is accurate, the feat described is quite amazing.

Through these dolphins, he made some of the most extraordinary breakthroughs ever in understanding another species' mind—a species that even Herman describes as "alien," given its aquatic life and the fact that dolphins and primates diverged millions of years ago. "That kind of cognitive convergence suggests there must be some similar pressures selecting for intellect," Herman said. "We don't share their biology or ecology. That leaves social similarities—the need to establish relationships and alliances superimposed on a lengthy period of maternal care and longevity—as the likely common driving force."

Maybe! You can put your faith in that untestable hypothesis if you want to. I guess I just have a grander view of the universe, of humanity, of our fellow creatures, and of our Creator.