The new microchips have tiny barbs on them to hold them in place. Sort of like a miniature version of a Porcupine's quill. And some of us know how Porcupine quills get stuck in dogs! <G> Takes a pair of pliers and a mighty yank to remove them! Barb Bowes Bo & Chelsea (Pyrs), Flopsy (Pyr Shep) & Machin (Doxie) The more people I meet, the more I like my dog! bamb@monmouth.com