Wildlife biologists at the Marine Conservation Program first identified Neil in March 2022 as the same male pup born and weaned on the Tasman Peninsula in October 20203. By mid-2022, Neil had started "hauling out," the term for when seals come ashore to rest during their annual molt, at beaches near Hobart1.

The first known viral video of Neil appeared on TikTok on June 30, 2022, posted by user @bigdaddyofdadjokes, showing the seal playing with traffic cones on a road4. The video picked up over 98,400 views and 3,700 likes within a year. The next day, July 1, 2022, an Instagram page called "neiltheseal22" was created by a local Tasmanian resident, with the first post showing Neil with a traffic cone4. The account owner told The Guardian it was set up for "Tassie locals" and their children to learn about Neil's behavior3.

Marine biologist and TikToker @sophtopus later claimed she had footage of Neil from as early as 2021, explaining she'd been studying him as a marine biology student4.

Neil's viral fame brought serious attention to wildlife conservation in Tasmania. Multiple government agencies, including the Department of Natural Resources and Environment Tasmania and the Marine Conservation Program, had to issue repeated public safety warnings13. The situation forced a broader conversation about how social media fame can endanger wild animals.

International media coverage was extensive. NPR, BBC Newsround, TIME, USA Today, The New York Times, and The Guardian all ran features on Neil between December 2023 and early 20241236. The story was picked up as both a lighthearted animal interest piece and a conservation cautionary tale.

Unofficial merchandise including t-shirts and soft toys were sold in Neil's name36. A song was even written about him6. The Instagram account's decision to stop sharing Neil's real-time location, on the advice of marine biologists, became a talking point about responsible wildlife content creation on social media36.

Experts explicitly invoked the fate of Freya the walrus, who was euthanized in Norway in August 2022 after the public refused to give her space, as a warning about what could happen to Neil7.

Neil's story starts with his unusual birth. Ecologist Clive McMahon of the Sydney Institute of Marine Science explained to The New York Times that Neil was likely born on a beach near the city, possibly because his mother was lost3. McMahon believes Neil had a lonely childhood without other young seals to socialize and swim with, which may explain why he's so comfortable around humans. Young seals "will habitually return to the places where they were born," McMahon said, "so that's probably why Neil thinks this is his home"3.

By mid-2022, Neil's presence in Hobart-area neighborhoods was already causing headaches for authorities. The Marine Conservation Program repeatedly told the public to keep at least 20 meters (65 feet) away from Neil and to keep dogs on leashes1. When those warnings went unheeded, officials grew more forceful. Kirsty De Lacy, associated with the conservation program, posted in July 2022 about three separate incidents of people poking or prodding the seal, urging the public to report animal cruelty1.

The seal's personality made him irresistible to locals. Videos showed Neil chomping on traffic cones, flopping across roads, lying on front lawns, and staring into bedroom windows. In one incident in November 2023, a woman named Amber Harris told ABC Radio Hobart that she heard a noise outside and thought someone was breaking into her car. "I looked out the window, and then next minute, I've got this big seal looking up at me in my bedroom window," she said2. Neil had parked himself in front of her car, making it impossible for her to get to work. "There's not a lot you can do with a 600-kilogram seal at your car," Harris said8.

The conservation challenges escalated in 2023. Professor Mary-Anne Lea from the Institute for Marine and Antarctic Studies warned that while Neil's interactions seemed cute when he was younger, "then they become bigger and other natural behaviours kick in, along with their hormones, and you can start to have interactions that you are less fond of"6. The April 2023 relocation from Kingston Beach was a direct result of the public ignoring safety guidelines. Despite staff being deployed to manage crowds, marine biologists decided the animal was unsafe and moved him to a more secluded location3.

Neil's return in late 2023, roughly 70 miles away in Dunalley, triggered the global viral moment5. Resident Stephen Godfrey told The New York Times, "I thought he was dead to be quite honest at first, because he was just laying there. But then he started moving around. He's sort of part of the community now"8. The Instagram account owner, following advice from marine biologists, announced they would stop posting Neil's real-time location to protect him36.

Experts drew comparisons to Freya, a walrus who turned up in Oslo, Norway in 2022 and was eventually euthanized after the public refused to keep their distance7. Wildlife biologist Sam Thalmann of the Marine Conservation Program warned directly: "That's a very large animal and potentially dangerous if provoked. We want to see Neil reach adulthood and beyond safely so it's critical he doesn't get used to being near humans"3. Officials are hopeful that once Neil reaches sexual maturity around age 10, he'll travel to one of the three southern elephant seal breeding grounds at Macquarie, Heard, or Maatsuyker Islands3.

Neil returned to Tasmania again in 2024, even larger than before7. Authorities put out signs requesting people stay at least 32 feet away7. Marine ecologist Sophia Volzke explained the annual visits: "This is the time where they molt, so they need to be on land to do this, and they don't go back to sea because they need to shed their skin"2. She also noted that moving Neil had become impractical. In previous years, "maybe 10 strong men with a big tarp" could lift him onto a trailer, but "that wouldn't be possible this year. He's gained so much more weight. You'd have to get a crane at some point"2.

As of May 2025, Neil was reportedly spotted near Hobart in good health, though local news requested his exact location no longer be shared for his protection5. His TikTok following had grown to over 1.3 million, and his Instagram had more than 154,000 followers5.