Dholes are hunted for their fur and meat but they can be used for other things. Some people don't kill them and just capture them to keep as pets or even in zoo as they are very rare to see and are nearly extinct with only about 2,500 Dholes left.
The Dhole has become endangered for many reasons. Loss of habitat and prey base, disease such as rabies ,inter specific competition for prey with Tigers and Leopards.
Zoos are useful to scientists as they get to study the behavior, feelings, expressions, etc. Scientists can monitor animals in an controlled environment.
This view of sight of scientists is unique.
Depends on the area or country but they usually become parks or property of local aboriginals or conservationalists/naturalists/historians etc.
Crocodiles or alligators? Because alligators are being eaten.
Pointy ears are better at detecting sound at the distance than floppy ears. They are also less likely to get infected.
the color purple but not the movie