Robber crab in the rainforest. Photo: Wondrous World Images
Robber crab in the rainforest. Photo: Wondrous World Images
Wednesday 23 September 2020

They’re colossal, tough and some even consider them terrifying given they look like something from a science fiction film. They can climb trees, are known to attack birds and have the most powerful claws on the planet.

Robber crabs, also know as coconut crabs, often appear in viral internet posts on social media. You may be tempted to dismiss them as fake…

The truth is that they’re quite real.

Robber crab living up to its name.
A large robber crab living up to its name
Robber crab on beach.
Robber crab eating.

They found the remains of a Steyr rife sometime later. The robber crabs had dragged it off and crushed it.

Robber crabs don’t just settle for stealing rifles. They’ll steal cameras, shoes, rucksacks, camping gear and break open eskies. They’re also known for climbing up flyscreen doors outside kitchens where food is cooking.

“The biggest one I’ve seen is about 4.5kg in weight, and about one-metre across,” Orchard says. “No one really knows for sure how old they are. The 2-3kg crabs are about 50 years old.

“I have seen over 300 robber crabs around a fruiting Arenga palm in the national park at different times. It’s a magnificent sight.”

Christmas Island is the only place in the world where these animals are so plentiful and still grow to a “monstrous size” as Charles Darwin once observed during his voyage to the region on The Beagle.

While these gentle giants are usually overshadowed by their more famous red crab colleagues who migrate en masse each year in the tens-of-millions, they are a genuine spectacle in their own right.

And a true highlight on an island that’s also known as The Kingdom of the Crabs.