4 beluga whales arrive at Shedd Aquarium

Four beluga whales plucked from a shuttered Canadian marine park arrived at Shedd Aquarium early Tuesday, as part of an "urgent" rescue mission. Shedd officials have said that as many as 10 belugas may be coming to Chicago in the next few weeks as part of the complex mission, which involved transporting the whales in water-filled containers both by truck and airplane. "While the whales have arrived safely, a transport effort of this magnitude is difficult, and the aquarium cautions that experts…