Swallowtail caterpillars are green once they grow large Kerry Calloway, who helps manage the tropical butterfly house, says, 'When they are resting on top of a green leaf, they look just like bird ...

The green caterpillars of Hebomoia glaucippe masquerade as vine snakes ... Pretending to be a snake is a big feat for a small caterpillar trying not to be noticed. But if provoked, this species will ...