A father fishing with his daughter in Canada caught a spawning sunfish.<br /><br />YouTuber Vivafrei wrote: "We noticed this fish was peeing but it's not pee - it's sperm."<br /><br />"What's sperm?" his young daughter asks.<br /><br />"Sperm is the seed that the male animal uses to make babies with the female," Vivafrei explains tactfully.<br /><br />He quickly unhooked the fish and returned it to the water so that the sunfish "could go upstream and make babies," he later wrote online.