digital africa starts december twelfth on t.w. . visited that we do is live from boston i m phil gayle these are our top stories this hour the u.s. ambassador to the united nations has accused russia of committing outrageous violation of ukrainian sovereignty after russia seems to three ukrainian ships near the disputed crimean peninsula ukraine s president has called on parliament. imposing martial law. that when people outside the continent think of africa they often think of the animals there as antelopes and giraffes elephants and rhinos romping majestically across the plate but many subspecies of these animals are endangered six hundred and thirty six that s how many species of animals are critically endangered in sub-saharan africa and the black rhinoceros of the mongoose lemur the creatures you see here could soon disappear forever if nothing