Scientists believe raccoons to be intelligent animals, but people who live in cities may find that their local populations are particularly cunning. This might be the result of urban raccoons frequently having to overcome hurdles created by people. When Toronto-based psychologist and biologist Suzanne MacDonald fitted city raccoons with GPS collars, she discovered that they had learnt to stay away from significant intersections. The idea that raccoons accustomed to living among humans are better able to solve unusual challenges was validated by a second experiment. In both urban and rural areas, MacDonald hid food in trash cans. Most city raccoons could figure out how to open the tricky lid, but the country raccoons consistently failed.
Raccoons use their sense of touch to find food, as opposed to the majority of animals, who either use their senses of sight, sound, or smell. Their front paws are extremely agile and have nearly four times as many sensory receptors as their back paws, which is similar to the proportion of human hands to feet. When they are feeding at night, they need to be able to distinguish between items without being able to see them. Raccoons can increase their sense of touch by a process known as dousing. In reality, animals are soaking their paws to stimulate the nerve endings, even though it may appear to people that they are washing their food. A raccoon can feel more than it would otherwise be able to because water on its hands provides it additional sensory data to work with, similar to how light does for human eyes.
Raccoons are one of the few extinct species that have profited from the spread of humans. Despite the devastation of much of the creatures' natural habitat over the past few decades, populations in North America have skyrocketed. Raccoons are versatile enough to thrive successfully in suburban, urban, and rural settings. Raccoons scavenge for trash and pet food in residential areas while eating birds, insects, fruits, nuts, and seeds in woodlands. Some raccoons forage in areas where people live and then spend the day sleeping in the woods. Others live in buildings, both occupied and unoccupied.
In the early 20th century, raccoons were poised to become the go-to model for animal experiments. They were some of the most curious and intelligent animals available, scientists believed, so that meant they were an obvious choice for comparative psychology studies. Though raccoons were the subject of several psychology experiments at the turn of the century, they didn't stick around in labs for long. Unlike rats, they were hard to breed and maintain in large numbers. They also had the pesky tendencies to chew through their cages, pickpocket researchers, and hide out in air vents. Despite one researcher's plan to breed a tamer strain of raccoon, the creature's future in the lab never took off.
How smart is a raccoon? While raccoons are intelligent animals, Melanie is particularly gifted for her species. “All raccoons are pretty smart,” said Suzanne MacDonald, a professor of animal behavior at York University in Toronto. “Back in 1913, this guy named Walter Hunter wanted to see if raccoons are smarter than dogs.
Can a raccoon drown a dog in water? Raccoons may look cute, Jagendorf says, but they're quite capable of defending themselves. Even with two dogs against a single raccoon, the tussle was a standoff. "Later an animal control officer told us that a raccoon can drown a dog in two inches [five centimeters] of water just by holding its nose under water."
If you give raccoons a problem, they'll typically figure out how to solve it as long as there's food involved. They have repeatedly demonstrated this in labs in addition to yards and campsites. Early in the 20th century, ethologist H.B. Davis presented 12 raccoons with a set of locks to pick. They had to negotiate hooks, bolts, buttons, latches, and levers to get to the rewards inside the boxes; some of the boxes had multiple locks. The raccoons eventually managed to bypass 11 of the 13 defenses.