In this video of our giant Pacific octopus on the move, we gain an appreciation of his epic size. Giant Pacific octopuses can weigh over 50 pounds and have an arm span of 7 to 13 feet, tip to tip. Unsurprisingly, they feed on all sort of things including, shrimp, clams, lobsters, fish, birds, and even small sharks. Even more impressively, they can grow from 2 pounds in their first year to 20 pounds by age 2. | New York Aquarium