http://breezewiki.catsarchywsyuss6jdxlypsw5dc7owd5u5tr6bujxb7o6xw2hipqehyd.onion/tardis/wiki/Earth
However, while investigating the signals with Martha Jones , the Tenth Doctor recognised the Benefactors as the Cineraria , an alien race that took planets by stealth, wiped out all life, and then stripped them of their resources. In reality, the whales were intended to collect the gas and then drop on cities across the globe, wiping them out and leaving the gas cloud to do the rest.