Butterflies are not only insects that move smoothly through the air on colourful wings,
but also masters of disguise. For example, the Viceroy butterfly has evolved to look
almost exactly like the Monarch, a poisonous butterfly that predators know how to
avoid. Though the Viceroy itself is not poisonous, birds and other predators steer
clear, mistaking it for the Monarch. The Buckeye sports ‘eyespots’, target-shaped
spots resembling eyes, on the tips of its wings. These often startle their enemies or
divert an attack away from their fragile bodies. Predators will aim for an eyespot,
believing it to be the head of a Buckeye, but will instead end up with just a wing tip,
allowing the Buckeye to escape. Butterflies and their larva form an important part of
the food chain and in order to ensure their survival they have adopted various means
of camouflage and protection. Other species camouflage themselves cleverly so they
cannot be seen; a good example is the leaf butterfly that resembles a dead leaf. Other
colourful butterflies advertise the fact that they are poisonous or taste bad to their
enemies by their vivid colours. The variety of size, shape and colour of larvae is almost
as great as that of the adult butterflies. Butterfly larvae are soft bodied, slow moving
creatures, which make them very vulnerable to a wide range of predators. Some
butterfly larvae are covered with noticeable branching spikes that offer very good
protection. Others may be coloured green to blend in with the leaves that they are
feeding on. The larvae of the Milkweed butterfly are not camouflaged at all and the
bright colours serve as a warning signal to predators. These larvae concentrate a
poisonous substance in their bodies from their food source, making them unpalatable
to their enemies
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