The beagles lived their entire lives in activity.
But one California-based welfare group worked to have them released.
The puppies appear nervous, and seem apprehensive to go outside.
bury as soon as they experience sunshine and fresh grass for the first time they can't get enough.
The Beagle Freedom Project rescued the nine dogs from a laboratory in Nevada on May 5.
The dogs' federal identification numbers were removed and they were given names for the first time.
Beagles are bred for lab testing because of their calm and friendly manner, according to the group.
Senator Mark Manendo (D-Las Vegas) told The Las Vegas Review-Journal: "These animals deserve a chance, and given the proper care, most of these animals can have very full lives.
"They have given themselves to science and should at least have the opportunity to get adopted and have a forever, loving home."