See footage of a rare, swift octopus attack on an unsuspecting crab—one so aggressive it surprised even marine biologists. | National Geographic

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3.1K views · 141 reactions | Join us for a giant pacific octopus feeding session! Did you know octopus have a varied diet that includes lobsters, crabs, fish, and more! | Mystic Aquarium | Facebook

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