Animal vision helps zoologists

Knowledge about animal vision could reveal the causes of the appearance and behaviour of different species.

ONLY THE ENEMY CAN SEE THE PATTERN

The amazing patterns of butterfly wings are not a signal 1 to mates, as they cannot see them. They instead confuse or even frighten predators (such as with fake eye shapes).

THE PREY CANNOT SEE THE WARNING

The spider made a large X in its web. Prey cannot see it 2 and was never meant to. The warning is for birds, so they do not fly into the web to destroy it.