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Raccoons - Raccoons learn fast and have learned how to open progressively more complicated garbage bins, as has recently been seen on the news in Toronto.

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Previously tested like rats, but rebelled - Raccoons were once treated like lab rats, but they often rebelled against the scientists and escaped the labs through the vents. Scientists no longer test on raccoons.

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Orcas - Orcas have the second-largest brains out of all mammals living in the ocean. They trail only dolphins.

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Stories passed down - Orcas pass down stories, largely about hunting methods, through generations. Similar behaviours can be observed in other families of whale.

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Canada lynx - The Canada lynx is one of the most elusive and poorly-understood animals in the western hemisphere.

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Picky eater - Despite living in harsh, mountainous regions, the Canada lynx is an extremely picky eater. The snowshoe hare makes up about 97% of its diet.

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Wolverines - Wolverines are rarely spotted in the wild, but have solved complex puzzles in captivity. 

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Tunnels - Wolverines are known for constructing intricate tunnel systems that span significant distances. 

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Beluga whales - Belugas are believed to be among the most intelligent animals on earth. 

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Communicating with humans - It is believed that Noc, a beluga held in captivity by the American Navy, attempted to learn English and communicate with humans by mimicking the people experimenting on him.

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Grizzly bears - Grizzly bears are considered the most intelligent land animal in North America, on par with some primates.

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Cover their tracks - Grizzly bears live in complex, hierarchical societies, cover their tracks, and form deep bonds.

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Polar bears - Polar bears keep track of each other, requiring the ability to count, and stay in tight-knit groups.

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Polar bears - Bears in general can remember an individual and their relationship to them up to 600 metres away.

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Honey bees - Despite their small brains and bodies, honey bees are highly intelligent because of their high brain density.

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Pattern and landmark recognition - Honey bees can recognize patterns and navigate by remembering landmarks. 

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Gray wolves - Like all wolves, gray wolves coordinate with their packs and plan attacks.

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Society - Wolves have complex societies and their howls communicate territorial claims or alert the rest of their pack.

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Pacific giant octopus - Octopuses are some of the smartest animals on the planet. The Pacific giant octopus hunts and returns to the same den, meaning it has spacial memory.

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Working memory - They also have a working memory, hunting in one area one day and saving another hunting trip for the following day. 

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Coyote - Coyotes have adapted to urban living, scaring rabbits into traffic and eating their corpses.

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Adaptable - Coyotes are among the most adaptable animals on the planet, with the ability to live in mountain ranges, the desert, and cities.

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Pigeons - Perhaps surprisingly, pigeons are one of the most intelligent birds on Earth.

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Mirror test - Pigeons can even recognize themselves in the mirror. 

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Squirrels - Squirrels store nuts in trees to save up for the winter. 

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Trickster - Squirrels will also make fake food storage sites to trick their competitors while preparing for the winter. 

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Foxes - The phrase "clever like a fox" lends itself to the animal's actual intelligence.

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Adaptation - Like their relatives, coyotes and wolves, foxes adapt to deserts, the arctic, and urban areas.

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Rabbits - Rabbits are known for their highly social and intelligent nature, but the reason is surprising.

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Prey - Because rabbits are prey for almost any predator, they have a high evolutionary need for escaping dangerous situations, like burrowing tunnels and evasive strategies.

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