African driver ants: These ants are native to the savannas and forests of central and western Africa and are known for their large and aggressive colonies. The queen ant can lay up to 3 million eggs per month, making her the most prolific egg-layer among all animals.

Guppies: These fish are popular aquarium pets that can reproduce rapidly and frequently. They are ready for breeding within three to four months and stay ready for their short lifespan of two to three years. They normally drop anywhere from seven to twenty eggs at a time.

Seahorses: These fish are unique in that the male carries the eggs after the female inserts them into his pouch. The clutch of eggs can be as few as 150 or as many as 2,000, depending on the species. The male seahorse can give birth to thousands of babies at once.

Mola: These fish are the heaviest bony fish in the world, weighing up to 5,000 pounds. They are also heavyweight egg producers, releasing 300 million eggs over a spawning season. However, only a few of these eggs survive to adulthood due to predators.

Rabbits: These mammals are notorious for their high reproductive ability. They can breed four to five times a year, producing four to twelve offspring per litter. A female rabbit can produce up to 100 offspring in her life.

Lemmings: These rodents are famous for their population explosions and mass migrations. They can reproduce four seasons a year, every season producing up to eight offspring per litter. A female lemming can produce up to 80 offspring in her life.

Frogs: These amphibians have a variety of reproductive modes, but most of them involve laying large numbers of eggs in water. Some frogs can lay up to 20,000 eggs at a time. However, many of these eggs are eaten by predators or die from environmental factors.