Rex

Rex is an individual dolphin documented in international marine mammal tracking databases. The record is notable because Rex was housed in human care.

It means Rex was documented while living under managed care rather than only being observed in the open ocean. The available description does not name the facility or give a care timeline.

The supplied description calls Rex a dolphin but does not specify the species. It would be unsafe to label Rex as a bottlenose dolphin without checking the original database entry.

A named individual in human care can provide a stable subject for identification and marine mammal records. Tracking information may help organize health, location, behavior, or institutional history, depending on the database.