No, it is not possible to regrow the human teeth but a replacement is possible.
no
no
Actually, each time they eat, some of its teeth break or fall out.
No,they can't.
One The unicorn, a mythical creature, has one horn. That is the etymology of its name.
For the same reason as humans. Teeth are essential for the mastication (chewing) stage of digestion. Teeth can also be used as a defence mechanism for many animals.
animals with sharp teeth
They're called "teeth".
An animals teeth are not often healthy and that is why there is toothpaste and brushes for dog/cat teeth. When you take your dog to the vet he looks at the teeth. Wild animals are often missing teeth and animals in zoos get dental care.
Well there are no animals without teeth unless you were to pull them, an animal were to lose them, and natural causes so all animals have teeth
Only if it is a puppy and is losing it's milk teeth. Otherwise, if the dog is an adult the tooth will not regrow.