(PhysOrg.com) -- Because we’re so smart compared to other
species that live on this planet, people tend to ascribe certain
abilities as innately human. One of these traits is the ability
to lie or cheat. This is because doing so seems to imply a high
order of intelligence. Unfortunately, as with many other traits
that have once been thought uniquely human, lying, or bluffing
appears to occur in other species as well, or at least in one,
the lowly male crayfish. In a recent study, Michael Angilletta
from Arizona State University and Robbie Wilson of the
University of Queensland, found that male crayfish use claw size
to bluff their way out of fights with other males. They have
published their observations in the Royal Society journal,
Biology Letters. Crayfish, as most who have ever seen them can
attest, are naturally aggressive. If you stick your hand in the
water, rather than run or hide, a crayfish will grab your
fingers with its sharp claws and try to defeat you. Thus, it
should come as no surprise that th