Blue whales are the largest animals in the world. They can grow up to 100 feet long, weigh 180 tons and live to 90 years old. But people rarely get to witness these majestic giants. Fortunately, activist group Sea Shepherd Society gives us a rare sight of these creatures, after encountering two in the Southern Ocean off Antarctica in late January. They sent a drone up from their boat, the Steve Irwin, and captured this stunning footage of a mother and calf blue whale.