An extremely powerful animal, belonging to the Ursidae family, the Romanian brown bear - regarded by many biologists as being a sub-species still unregistered - has a body up to 2.5 m in length, height at withers of up to 1.5 m and a maximum weight of 600 kg.
The brown bears have thick fur, much appreciated, with two rows of hairs, ears and fluff.
Although their basic color is brown, bears show a great deal of color variations (from red to black bears). Some have white spots on the neck.
The brown bear is primarily a nocturnal animal. Brown bears are mostly solitary, although they sometimes gather in large numbers at major food sources and form social hierarchies based on age and size.
The brown bear is an omnivore animal. Its diet consists of mostly fish and plant roots. They also eat small animals and, sometimes, hunt larger animals such as deer.
The mating season is from late May to early July. Females mature sexually after the age of 5. If the female does not gain enough weight to survive through the winter, the embryo does not implant and is reabsorbed into the body.