History
Ulara Krill was an alien race from an unidentified planet. She and his family went out to explore the galaxy in search of new planets to colonize. During their travels they encountered a distress signal and went to investigate. They discovered the signal was a trap by a Brood-Infested Acanti, and attempted to flee but their vessel was boarded. Ulara and her children were infected and transformed into Brood, Tyrus was similarily infected but was able to inject himself with a depressent which supressed the infection. Ulara then left in the escape pod.
Eventually Ulara and her brood nest took root on Earth in the Hotel Ripley on Earth, bringing them up agains Wolverine and a venegeful Tyrus. After they managed to take out all the Brood, Krill left himself transform into a Brood, tricking Wolverine into killing him. As Krill lay dying he revealed the full truth to Wolverine, who laid Krill with his dying family. Wolverine returned their bodies to the ship and with Beast's help they returned the ship to their homeworld.[1]