Killer Coconut Crabs?

[deleted]

I wouldn't want to get close to them either!
From Wiki:
1)

Birgus latro is the largest terrestrial arthropod, and indeed terrestrial invertebrate, in the world; reports about the size of Birgus latro vary, but most sources give a body length of up to 40 cm (16 in), a weight of up to 4.1 kg (9.0 lb), and a leg span of more than 0.91 m (3.0 ft), with males generally being larger than females. The carapace may reach a length of 78 mm (3.1 in), and a width of up to 200 mm (7.9 in).

The pincers of the coconut crab are powerful enough to cause noticeable pain to a human; furthermore, the coconut crab will often keep its hold for extended periods of time.