While we as humans might find it appealing to free a long-term captive animal, the survival and well being of the animal may be severely impacted in doing so
Scientists reporting on attempts to return an orca named Keiko, star of the film Free Willy, back to the wild
"They are highly social animals that tend to live in cohesive groups, so it's quite an artificial environment to capture them and put them in a small area," says Dr Andrew Foote, an expert on wild orcas from the University of Aberdeen, UK.
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