Happy, la elefanta asiática que ayudó a demostrar que su especie puede reconocerse en un espejo, murió a los 55 años tras una eutanasia en el Zoológico del Bronx.

Happy, a Bronx Zoo elephant who gave researchers new insight into the animal's behavior and became the crux of a closely watched animal rights case, has been euthanized at age 55.

A Bronx Zoo elephant who gave researchers new insights and became the crux of a closely watched animal rights case has died.