http://www.suntimes.com/photos/galleries/index.html?story=13401491

http://www.suntimes.com/photos/galleries/index.html?story=13401491

 In this July 13, 2004 photo, Natalie Homza is notified by her new hearing dog Arby that her oven timer is going off during a training exercise in her Shreveport, La., home. In recent years, researchers are finding that thought processes in animals aren't a matter of how closely related they are to humans. You don't have to be a primate to be smart. (AP Photo/The Shreveport Times, shreveporttimes.com, Shane Bevel) MAGS OUT; MANDATORY CREDIT SHREVEPORTTIMES.COM; NO SALES

In this Dec. 13, 2006 photo provided by the Primate Research Institute of Kyoto University, a 5 1/2-year-old chimpanzee named Ayumu performs a memory test with randomly-placed consecutive Arabic numerals, which are later masked, accurately duplicating the lineup on a touch screen computer in Kyoto, Japan. The young chimpanzees in the study titled "Working memory of numerals in chimpanzees" by Sana Inoue and Tetsuro Matsuzawa could memorize the nine numerals much faster and more accurately than human adults. The evidence that animals are more intelligent and more social than we thought seems to grow each year, especially when it comes to primates. It's an increasingly hot scientific field with the number of ape and monkey cognition studies doubling in recent years, often with better technology and neuroscience paving the way to unusual discoveries. (AP Photo/Primate Research Institute of Kyoto University) PART OF A SEVEN-PICTURE PACKAGE WITH "ANIMAL SCIENCES"

In this Dec. 13, 2006 photo provided by the Primate Research Institute of Kyoto University, a 5 1/2-year-old chimpanzee named Ayumu performs a memory test with randomly-placed consecutive Arabic numerals, which are later masked, accurately duplicating the lineup on a touch screen computer in Kyoto, Japan. The young chimpanzees in the study titled "Working memory of numerals in chimpanzees" by Sana Inoue and Tetsuro Matsuzawa could memorize the nine numerals much faster and more accurately than human adults. The evidence that animals are more intelligent and more social than we thought seems to grow each year, especially when it comes to primates. It's an increasingly hot scientific field with the number of ape and monkey cognition studies doubling in recent years, often with better technology and neuroscience paving the way to unusual discoveries. (AP Photo/Primate Research Institute of Kyoto University) PART OF A SEVEN-PICTURE PACKAGE WITH "ANIMAL SCIENCES"

FILE - In this undated file photo provided by the National Academy of Sciences, Dodger, a 2-year-old female dolphin, carries a marine sponge for use as a foraging tool in Australia. Researchers say sponge-carrying appears to be a cultural behavior passed on from mother to daughter, a first for animals of this type, although such learning has been seen in other species. In recent years, researchers are finding that thought processes in animals aren't a matter of how closely related they are to humans. You don't have to be a primate to be smart. (AP Photo/National Academy of Sciences, Janet Mann, File)

FILE - In this Feb. 21, 2012 file photo, after being told a word, an orangutan points to that object on an iPad computer tablet at Jungle Island zoo in Miami. The evidence that animals are more intelligent and more social than we thought seems to grow each year, especially when it comes to primates. It's an increasingly hot scientific field with the number of ape and monkey cognition studies doubling in recent years, often with better technology and neuroscience paving the way to unusual discoveries. (AP Photo/J Pat Carter, File)

In this 2009 picture provided by Think Elephants International, two elephants pull a platform with a food reward, designed only to work with the cooperation of two animals, at the Thai Elephant Conservation Center in Lampang, Thailand. Animal researchers in recent years are finding that thought processes in animals aren't a matter of how closely related they are to humans. You don't have to be a primate to be smart. (AP Photo/Think Elephants International)