Those animals do a lot better in captivity than large cetaceans. Orcas in captivity live to be 30 years old at the oldest. In the wild, they can live to be 100. They also have been known to become violent and kill their trainers. Tilikum killed three of his trainers. Where as in the wild, there is no recorded case of an orca killing a human.
So yeah, I don’t think a hedgehog and an orca is a very fair comparison
There's a lot wrong with this. Let's start with the obvious. "Orcas in captivity live to be 30 years old at the oldest". Fascinating! Someone ought to tell Corky (age 56), Lolita (age 54), Ulisses (age 43), Katina (age 45), Kiska (38), and several others, including Tilikum who died at 35.
"In the wild, they can live to be 100" No. In the wild,
one individual
allegedly lived to 100 based on
extremely disputed evidence. However, even if it were true, which later studies say it's not, the oldest possible individual is not a worthy metric to measure lifespan. The oldest cat ever lived to 38, but the vast majority of cats won't even make it to 20 (average is 16). That doesn't mean most cat owners are abusive, that means that particular cat was extraordinary in some way. As for the average lifespan of killer whales? Let's take the NOAA fisheries numbers: "The
average lifespan for male killer whales is about 30 years, but they
can live up to at least 60 years. Females
typically live about 50 years, but
can live up to at least 90 years in the wild." Even that's disputable because the alleged oldest known orca, Granny, has a listed date of birth as "1911-1951", which also means that she may have been as young as 65.
"Tilikum killed three of his trainers" Well, no not exactly. The first death he was involved in was Keltie Byrne. In the "documentary" Blackfish, witnesses claim "the big one" grabbed Keltie and viciously drowned her. The problem with that is Tilikum was 10 at the time, so he wasn't "the big one", and both Haida IV and Nootka II, older females who lived with him, were dominant over him. Any involvement he had would have been minimal, and eyewitness testimony confirms he wasn't the primary instigator. The second death was Daniel P. Dukes. He was
not a trainer. In fact news reports at the time call him a "drifter off a string of arrests". He got naked and entered the pool with Tilikum, at which point Tilikum eventually killed him. It's hard to really blame captivity for this death, since A: trainers were not supposed to enter the water with Tilikum as he'd never undergone water desensitization training and B: a strange erratic man entered the enclosure of an animal, an apex predator no less. Pretty much any animal would attack in this scenario. Finally, the third death, Dawn Brancheau lied down on a slideout, and Tilikum grabbed her ponytail and drowned her. This was a tragic incident, and the trainer made a mistake by misjudging the situation, but again, it was known to trainers they weren't supposed to enter the water with Tilikum since the beginning of his tenure at SeaWorld.
"Where as in the wild, there is no recorded case of an orca killing a human". I don't think you've considered that there is, in fact, a pretty obvious reason for why this is because it's the same reason cattle kill more people yearly than sharks. People work and spend hours per day with captive orcas every single day, 365 days a year, since 1961. Contrast that with wild orcas, who pretty much never swim with people. Not to mention the fact that Wikipedia does, in fact, have a list of wild killer whale attacks on humans, and that, in 2020, there were over 40 reports of wild orcas attacking boats off the coasts of Spain and Portugal, source below.
https://www.bbc.co.uk/news/extra/buqvasp1rr/orcas-spain-portugal