10 Reasons Why The Giant Spider Crab Is The Crustacean Of Your Nightmares.

As land dwelling mammals, we humans know that the oceans are deep, dark, and full of terrifying creatures. One of the most frightening creatures around is the Giant Spider Crab, also known as the Japanese Spider.

While these bad boys aren’t are huge and scary as some crabs out there, they are still pretty darn creepy. Here are 10 reasons why the Giant Spider Crab is most terrifying crustacean of the deep.

1.) They’re giant.

1.) They're giant.


This is the first thing you’ll notice about the Giant Spider Crab (it’s also in the name). These things can have a leg span up to 12 feet, and can weigh up to 42 pounds. They could easily eat a human child if they wanted to.

2.) They dwell in the depths. 

2.) They dwell in the depths. 

Damien du Toit

Giant Spider Crabs call the deep, dark depths of the ocean their homes. Their normal habitat is between depths of 490 and 980 feet or more. This means they’re tough and very well adapted to the harsh ocean environment.

3.) Its claws can cause some serious damage.

3.) Its claws can cause some serious damage.


When Giant Spider Crabs were discovered in 1836, Coenraad Jacob Temminck noted that they were known for the serious injures they can cause with their strong claws. Not to mention they have a huge reach.

4.) They’re hard to catch. 

4.) They're hard to catch. 

Michael Coghlan

They’re notoriously hard to catch because they dwell at such dark depths. There is a single fishery in Japan that harvests the crab year round, except during mating season.

5.) They taste delicious. 

5.) They taste delicious. 

Maarten Heerlien

Apparently in parts of Japan, the Giant Spider Crab is eaten and considered a delicacy. I’m still not sure I could enjoy eating one of these. I wonder if they look any less terrifying once they’re cooked.

6.) Long Life Cycle.

6.) Long Life Cycle.

Ruth Hartnup

This one might be the most freaky fact of all. These Giant Spider Crabs are thought to live to 100 years old. Compared to humans, they’re pretty much immortal. Great.

7.) They’ll eat pretty much anything.

7.) They'll eat pretty much anything.


At the bottom of the ocean, Giant Spider Crabs pretty much eat anything smaller than they are. This includes fish, algae, and other plants. They’re also known to be good scavengers.

8.) They look like they’re right out of a horror film.

8.) They look like they're right out of a horror film.


If you haven’t caught on by now, these Giant Spider Crabs are named as such because they look like spiders. I’m not sure I could think of anything more terrifying than a giant, underwater spider with claws.

9.) They’re smarter than they look. 

9.) They're smarter than they look. 


In the wild, Giant Spider Crabs are fair game for even bigger octopi (which is a terrifying article for another day). So as a way of protecting themselves from these predators, they’re known to decorate their shells with sponges and other animals in order to blend in with their surroundings.

10.) They’re friendly (sort of).

10.) They're friendly (sort of).

Brian Gratwicke

According to people who worked with/experienced the Giant Spider Crab firsthand, they’re unusually gentle creatures. However, I’m not sure I believe them. Maybe it’s some sort of evil, crab plot for world domination.

If you’re not convinced that the Giant Spider Crab is terrifying, check out a couple of videos of them in action.

Here’s a video of one Giant Spider Crab attacking a diver. They don’t seem so gentle to me. Yikes.

I am now afraid of Giant Spider Crabs, and you should be, too. Though I can imagine that they probably taste really good.

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