First we thought a shark was following our boat. But then it was a lone seven to eight meter long mink whale (Zwergwal) that was very gracefully diving besides and under us for three hours. We saw it’s white stomach many times and it is assumed that they use their white stomach to scare and chase small feeding fish (like sardines or smaller). We believe this predator used our sailing yacht to better chase fish. The feeding fish might get confused by Orinoco’s waves or might be trapped between the boat and the whale.