north american manatee, an antillean manatee (trichechus manatus manatus) in wroclaw zoo, poland

north american manatee antillean trichechus manatus wroclaw zoo poland aquatic wildlife nature conservation animal gentle endangered underwater clear water mammal biology swimming ecosystem preservation habitat unique exotic marine life peaceful environment attraction biodiversity education tourist spot sea cow giant zoology natural zoological park species familyfriendly observation serene tranquil lovers tourism freshwater closeup soft appearance waters