Hasekanichen rabbit, what's the difference?

Hase:[der]pl。 Hassan is usually called a rabbit, which can also refer to a coward, the constellation of the rabbit.

Kaninken: [Das] chinchilla, domestic rabbit.

Rabbit: This is not a German word, but an English word. Generally refers to children's nicknames for rabbits. h？ schen[das]

I hope what I said can help you ~