How old can a dolphin be?

The lifespan of a dolphin varies depending on the species, but generally:

* Oceanic dolphins (like bottlenose dolphins) can live to be around 40-50 years old.

* Smaller dolphins (like the common dolphin) typically have a lifespan of around 25 years.

Some dolphins have been known to live even longer. For example, a female bottlenose dolphin named "Dot" was estimated to be over 80 years old when she died in 2006!

It's important to note that these are just estimates, and the actual lifespan of a dolphin can be influenced by factors like health, habitat, and food availability.