Camouflage, counter shading, disruptive colouration

•Antipredator
behaviors are traditionally described as either primary or
secondary defence strategies.

•Although
this
distinction
is often
blurred and individual behaviors can sometimes fit
both (or
neither) category, the distinction is a useful one.

•Primary defence strategies
can be thought of as those behaviors that reduce the
probability that an individual will be attacked by a
predator.

•Secondary defence
strategies,
by contrast, include those behaviors that
lessen the chances of an attack being successful.