I like taking pictures of people and small animals, and I plan to buy a Nikon D7000 stand-alone camera. What lens should I wear?

Characters should be 50 mm /85 mm; It is best for small animals to zoom in at a long distance, such as 80-200/ small bamboo cannon, but I don't recommend it for beginners because it is not only heavy but also expensive. If the picture is cheap and easy to use, I suggest you buy a 18-200 zoom, that's enough.