Here's why:
* Deer and antelope are different species: They belong to different families within the order Artiodactyla (even-toed ungulates).
* "Buck" is the term for a male deer: It's not a synonym for antelope.
* Antelope are found in Africa and Asia: While deer are found in various parts of the world, including North and South America, Europe, and Asia.
The confusion might come from the fact that both deer and antelope are hoofed animals, but they are distinct species with different characteristics.