1:1 alpha_channel ambiguous_gender biped black_claws claws digitigrade dinosaur dromaeosaurid extinct feathered_dinosaur feathered_scalie feathers feral novaraptor open_mouth prehistoric_species primal_carnage pubic_boot quills_(anatomy) reptile scalie sharp_teeth side_view simple_background solo spikes tail teeth theropod tongue transparent_background unknown_artist velociraptor yellow_eyes