Five elephants at a Colorado zoo may be “majestic” but do not have the legal right to pursue their release since they aren't human.

The court ruled Tuesday that the elephants couldn't be released because animals don't have the same rights as humans. The group that filed the suit said that the animals were experiencing stress, physical issues,

The Colorado Supreme Court on Tuesday struck down a national civil rights organization’s ninth attempt to declare animals legal persons in court and secure them the right to challenge their confinement and custody.

This week, more wolves were released in Colorado as part of an initiative to reintroduce the species to the state. The gray wolf has been endangered in the United States for many years, and recent poaching and habitat loss have further diminished their numbers.

Colorado wildlife officials announced Sunday that they had released a total of 20 gray wolves into the wild over the past eight days, marking the second year of operations for the state’s voter-mandated reintroduction program.