Can you tell the age of a shark by the size of its fins?

It is not possible to determine the age of a shark by the size of its fins. The size and shape of a shark's fins are influenced by many factors, including its species, sex, and geographic location, but not its age.

Sharks have two main types of fins: the dorsal fin on their back and the pectoral fins on their sides. The size and shape of these fins can vary greatly between species. For example, the dorsal fin of a great white shark is large and triangular, while the dorsal fin of a hammerhead shark is more curved and rounded. Similarly, the pectoral fins of a mako shark are long and narrow, while the pectoral fins of a nurse shark are broad and flat.

While the size and shape of a shark's fins are not good indicators of its age, scientists can use other methods to estimate a shark's age. These methods include counting the growth rings on shark vertebrae or using radiocarbon dating on shark tissues.