
The Mola Mola, or sunfish, can reach lengths of up to 10 feet and the same in height. To touch its dorsal fin, a person would need to stand on the shoulders of a friend. Large specimens can weigh as much as 1,100 pounds.
One of the sunfish’s most fascinating habits is its tendency to sleep on the ocean’s surface. There have been instances where small boats collided with these fish, and to the sleepy sailors, it felt as if they had hit a reef—such was the force of the impact.
But the sunfish is remarkable for more than just this; there are creatures in the ocean even larger than it. Like all fish, the sunfish spawns eggs. From a single egg hatches a tiny larva measuring just 0.87 inches (22 millimeters). To grow to the size of its parent, this little fish must increase its weight by an astonishing 60 million times.
Scientists believe this represents the greatest contrast in the animal kingdom between an adult and its offspring.