Look closely at your backyard butterflies! Here's how to detect the subtle differences among the three butterflies that look like monarchs.

Here's how to identify an Eastern tiger ... Grow these butterfly host plants to attract pollinators. Eastern swallowtail caterpillars are green with large yellow and black decoy eyespots.

Meanwhile, a reddish liquid spills out. That's all the waste the butterfly, née caterpillar, produced during its stay. Once its wings expand and harden, it's ready to mate, pollinate, and slurp ...