This is a video of Reggae, our 14 year old male Atlantic harbor seal. For the past two years I have been training him to allow us to take a blood sample from his hind flipper during a session. We have tried many methods and have found that, using a butterfly needle, we are more successful at getting a blood sample and the process is less intensive. So this was the training path that he and I took. The video shows the completed behavior where our vet, Charlie, is actually getting a blood sample while Reggae sits on the rocks. When the camera zooms in, you see the blood flowing up the tube attached to the needle. Success! At the end you will see me feeding him a lot of fish. This is called magnitude reinforcement and helps to communicate that he did really well. During sessions like this one, I will give him his entire pouch!