What continent is native to a black panther tapir and guinea pig?

There's a bit of a misunderstanding in your question. While black panthers, tapirs, and guinea pigs are all fascinating animals, they are native to different continents:

* Black panthers are not a separate species, but rather a melanistic color variation of several species of leopards and jaguars. They are native to Africa, Asia, and the Americas.

* Tapirs are large mammals with a short trunk-like nose. They are native to South America and Central America (the Baird's Tapir is also found in Mexico).

* Guinea pigs are small rodents originally domesticated in the Andes Mountains of South America.

Therefore, there is no single continent that is home to all three animals.