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"El oso polar" is a form of "oso polar", a noun which is often translated as "polar bear". "En peligro" is a phrase which is often translated as "in danger". Learn more about the difference between "el oso polar" and "en peligro" below.
el oso polar()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
1. (general)
en peligro()