No they are not real.
well real foxes don't have 3 foot long tails, but you can get a real 2 foot tail which is about the max, or a real fur "tail" made of fur rolled up into a tail shape, you could find those at 3 feet.
Chakra is believed to be real but no the tails chakra isn't real.
You can not get a mermaid tail at any time day or night. People can not change shape or become mermaids. They are not real and do not exist in real life. If you want a tail you can make one or buy one from a store. This is the ONLY way you will get a tail.
If not a real beaver's tail, it could be fried dough shaped to resemble a beavers tail. Popular in Canada.
No they are not they are only fiction.
They are not real creatures.
No, it is not possible for a human to have real dog ears and a tail. Such features are specific to dogs and cannot be naturally grown or replicated in humans.
On the human spine there is a skull at the top and what used to be a tail at the other end
You can not get a mermaid tail by taking a bath every night. People can not change shape or become mermaids. Mermaids are not real and do not exist in real life. If you want a tail make one or buy one from a store. That is the only way you will get a tail.
There are no places to get that cause they aren't real
Search google.