European bison bonasus calf suckling from its mother,grassland,Czechia

wisent bison calf ungulate herd pasture cattle wildlife bovine ruminant cow conservation bull grassland herbivore quadrupedal bovidae mammal endangered steppe horns horned habitat flank animal mother ears tail documentary bovinae nature wild bonasus grass suckle gregarious zubr reserve suckling field wagging rejecting natural refusing fur czechia european poland plain