"Robber crabs behaving badly! a couple of local #christmasisland families had a few extra mouths to feed at their BBQ over the weekend," the island tourism board posted on Facebook, sharing Amy's amazing snaps.
"#coconutcrabs have an incredible sense of smell and for slow moving creatures they sure move quickly when there’s food around... would you like to share your picnic with these guys???"
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Another member of the group captured video of dozens of the creatures scurrying around the ground, captioning it "#stuffofyournightmares"; however in reality the humans were clearly delighted to receive the food-pinching visitors.
The crabs, also known as the palm thieves, are the largest land-living arthropod in the world, and can grow bigger than 3-feet in length.