ostrich, Struthio camelus
['guillotine', 'obelisk', 'Indian elephant, Elephas maximus', 'orangutan, orang, orangutang, Pongo pygmaeus', 'boa constrictor, Constrictor constrictor', 'koala, koala bear, kangaroo bear, native bear, Phascolarctos cinereus', 'oxygen mask']