Blue whales being the largest animals on the planet, it stands to reason that their reproductive organs ought to be of similarly impressive dimensions, and that is certainly the case. By one estimate, the penis of a blue whale can measure up to 16 feet long and its testicles weigh in at around 25 pounds apiece. But even packing 50 pounds of bollocks — the weight of an average-sized bulldog, if you need a benchmark — it's absurd to imagine that a blue whale (or any other creature on earth, for that matter) could produce 400 gallons of seminal fluid at a time, or even one-tenth that amount.