Penguins do have predators in the leopard seals in the antarctic, but because they're the only bipedal animals down there they seem to view people as kinda just big penguins. They seem more than happy to jump into boats with people if they think there's a seal around or something.

And for their part, the seals also seem to view us as a curiosity or small seal. I know of at least one case where a seal tried to teach somebody how to hunt by bringing them fish and injured penguins like they would for a baby seal.

This is one of the coolest things I've ever read. Must've been incredible to experience firsthand!

It's a big problem in New Zealand. The native animals are super chill and relaxed because they have no native predators. However, invasive predators have been introduced and are wreaking havoc on the native species.