because stupid humans.
Human: tsk… of all the stupid things this idiot could do… look, they picked up a blue ringed octopus!
Human 2: is it dangerous?
Human: it’s australian, golden with bright blue circles. of course it’s deadly.
Human 2: oh dear, how can one be so stupid to pick up random animals in australia???
Alien: what’s with australia?
Human: well, everyone knows that australian animals are ten times more deadly than everywhere else. you don’t go picking up animals in australia, unless it’s a quokka. pretty much everything else is venomous, highly aggressive, or brings diseases. a combination of the three is possible.
Human 2: I remember that they had to censor an episode of a children tv show because it taught not to be afraid of spiders… in australia you MUST be afraid of spiders.
Alien: so… let me get this straight. you come from what we define as a Death World, and yet on your death world there is a place even more dangerous??
Human: well… yes.
A little later, the humans tell their alien friend about Beloved Cultural Figure Steve Irwin.
Whose entire life was dedicated specifically to physically interacting with the creatures on the Death Worlds Deadlier Continent.
Because they are cute. And important. And valued.
Humans. Pack-bond drives so powerful they will fall in love with the deadliest creatures on the deadliest continent of their deadly world.