Vocabulary 2 Unit 4
Service animal:an animal that has been specially trained to help someone
is a noun.No dogs are allowed in the restaurant area, with the exception of service animals.
sheepdog:a dog trained to help people control sheep and move them in the direction wanted
is a noun: Two sheepdogs herded the sheep into pens.
Therapy animal:an animal, typically a dog, trained to give comfort and support to people
is a noun: my dog is a therapy dog he help me much.