Which animal can mate the longest?

The animal known for mating the longest is the brown bat, specifically the species Myotis lucifugus. Mating can last for several hours, and the female can store sperm until she is ready to fertilize her eggs. This prolonged copulation allows for a higher chance of successful reproduction in their environment. Other species, like some types of insects, also engage in long mating durations, but the brown bat holds a notable record among mammals.