Frog is a rooster. Every weekday, he speeds down his family’s dusty driveway, rocking back and forth as he goes, like a feathery wind-up toy. Seconds later, a yellow school bus whines to a halt in front of him, just as Frog knew it would. For the last two years, Frog has never missed his chance to greet Savannah, the family’s teenage daughter, at her bus stop. “He could be indoors and he will start crowing right about the time the bus is gonna come,” says Savannah’s mother, Holley Burns. When Savannah gets off the bus, she carries Frog back to the house—nestled in her arms, settled on her shoulder, perched on the top of her head. “I love him more than my brother,” Savannah says. Don’t believe it? Ask the millions of other people who have watched Frog’s story on YouTube.

Frog likely would have stayed a local legend, a colorful bit of bus route lore, if it hadn’t been for the Dodo, an animal-focused media startup that the Webby Awards crowned the No. 1 animal brand on all of social media this year. To say that their Youtube and Facebook videos often go viral is a wild and hairy understatement.

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The Dodo racks up around 2.3 billion views each month with heartwarming videos about extraordinary pets (like this super-affectionate python), unlikely interspecies friendships (like this mini horse whose best friend is a goose), and animals in need of adoption by just the right human (like this sick, hairless pupper who became a floofy doggo). They have a separate YouTube channel for kids (Dora the Explorer is a sponsor), a Facebook Watch show about animals overcoming adversity, an Animal Planet show called Dodo Heroes, an IGTV series for teens about influencers and their pets, an upcoming unscripted series for Netflix Kids about an 11-year-old koala activist, and a newly inked children’s book deal with Scholastic. For a company named after a bird that is famously extinct, the Dodo is everywhere.

It didn’t exactly come from nowhere. The Dodo’s founder, Izzie Lerer, is the daughter of Ken Lerer, a well-known media executive and cofounder of The Huffington Post. Her brother, Ben, cofounded Thrillist and now runs Group Nine Media, which in 2016 became the Dodo’s parent company. When Lerer was hatching the idea for what the Dodo would become, she was a PhD student at Columbia University, studying philosophy with an emphasis on animal ethics and human-animal relationships. She launched the website in January 2014 (months before she was due to graduate) with the hope of combining entertainment and animal advocacy, Early on, the Dodo found success as a blog, first going viral with an article about a 103-year-old wild orca whale that put the lie to SeaWorld’s claims that their whales, which frequently die in their 20s, were living to a ripe old age. Then, in 2015, the Dodo made its canniest move to date. Noticing the trend away from blogging and toward mobile and visual entertainment, it pivoted to video.

In the five years since, the Dodo has built up the social media video empire it commands today. On one level, that seems easy. It’s no secret the internet loves animals; that’s been obvious since cats started asking if they can haz cheezburger. In truth, though, the mad craving for creature content resulted in the Dodo’s biggest initial challenge. “We realized that a lot of what was out there was either pure fluff or really heavy and guilt-inducing,” says Dodo president YuJung Kim. “We saw a big white space for something that was entertaining and substantive.” (Lerer, who’s now editor-at-large for the Dodo, was unavailable for an interview.)