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.
Anyone who has had a garden, cooler, or garbage can broken into by one of these animals knows that they have some of the most dexterous hands in all of nature. The first people to notice their unusual paws were Native Americans. The Powhatan phrase aroughcun, which means "animal that washes with its hands," is where the English word "raccoon" originates. Similar thinking went into the naming of the raccoon by the Aztecs. Mapachitli, which means "one who takes everything in its hands," was its given name. Mapache is now a Spanish word that means "raccoon."
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.
Do raccoons kill rats? Raccoons also eat insects, slugs, dead animals, birds and bird eggs, as well as fruits, vegetables, nuts, and seeds. Around humans, raccoons often eat garbage and pet food. Although not great hunters, raccoons can catch young gophers, squirrels, mice, and rats.
Can humans get raccoon roundworm? The species commonly found in raccoons is Baylisascaris procyonis. When infective eggs of this roundworm are ingested by humans, Baylisascaris larvae hatch in the intestine and travel through the organs and muscles. Infected raccoons shed millions of eggs in their feces.
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.
More recently, scientists gave the Aesop's Fable test to some raccoons. Researchers have adopted the well-known parable of a crow throwing stones into a pitcher to cause the water level to rise as a benchmark for animal intelligence. Raccoons were put in a space with a water cylinder, marshmallows floating on top, and stones strewn about it. They had to raise the water level first by dumping the stones before they could get to the sweet treats. Two of the eight raccoons imitated the action after being shown how to do it, but a third approached the issue differently and knocked the entire structure over.