@238328 In this video a young (6 year old) male dolphin is carrying a Frisbee on his erect reproductive organ (penis). With a young dolphin, an erection without "cause" is common. In fact, an erection is a voluntary action for male dolphins. While swimming, the erect organ faces forward to facilitate insertion into the female urogenital opening during intercourse. Little to no stimulus is required for ejaculation to occur. This is to the dolphin's advantage because male-to-female contact during mating is not lengthy, amounting to only a few seconds. If such contact were lengthy it could divert the attention of the pair, decreasing their chances of detecting approaching predators. Rapid ejaculation also allows for the easy collection of semen samples from captive dolphins, an important part of the health assessment process. It is believed that ejaculation is a voluntary process in dolphins.
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