They are large, dangerous predators that also require cold environments and vast spaces to roam.
They have a very specific diet (eucalyptus leaves) and are protected by law. Koalas also require a particular climate that is difficult to replicate in captivity.
Keeping venomous snakes poses a significant risk to humans and often requires special permits and housing.
While they may look similar to dogs, wolves are wild animals with instincts and behaviors that make them unsuitable for life as a pet.
These reptiles can grow to be very large and are dangerous predators with complex care needs that cannot be met in a home setting.
Besides being a symbol of conservation efforts, pandas have a very specific diet (mainly bamboo) and are protected under international law.
As large predators, tigers pose significant safety risks to humans and require extensive space and specific diets.