In which sentence is the "underlined" phrase an adverb clause?


Dogs, "such as bloodhounds", have a great sense of smell that allows them to help detectives.


Dolphins, "whom scientists say can find things with their own sonar", are trained to find underwater explosives.


A beagle puppy "in the Florida Everglades" was trained to sniff out pythons in the park.

"Although we might consider animals as pets", many animals work.