"I'll check the ISTTU's database." he said as he went back into the ISTTU, flipping a few levers and pushing a few buttons. The monitor cam on and showed a picture of the creatures they saw. "They're called the Ravec..." he checked the details. "We definitely need to kill these things... it says that they're a species of predatorial carnivores that love the taste of human meat. They live to treat humans as livestock, using Earth as one big farm. They live on Earth and eat the human inhabitants during the night. They're arms are made of steel, they're fast and strong, and they have a hunger only human flesh will satisfy. We might be able to be like the Doctor, and try to give them a second chance, or we could just kill them. What do you think?" he said.