Can you tell the age of a squid by the size of its tentacles?

While the size of a squid's tentacles can provide some clues about its age, it is not a reliable method of determining its age.

Like other animals, squids grow larger as they age. This means that larger squids will generally have longer tentacles than smaller squids. However, the rate of growth can vary depending on a variety of factors, including the species of squid, its environment, and its diet.

In some cases, squids may also lose and regrow their tentacles, which can further complicate attempts to estimate their age based on tentacle size alone.

Scientists who study squid biology and ecology use a variety of methods to estimate the age of squids, including analyzing growth rings in the squid's statolith (a calcified structure in its head), counting growth increments in the squid's beak, and using genetic markers to track changes in the squid's DNA over time.

Overall, while the size of a squid's tentacles can provide some useful information about its age and growth, it is not a definitive method of age determination.