Right after I finish working in my garden every evening at twilight, the entertainment begins.

First there is one, then two, and before long the yard is aglow with dozens of lightning bugs – also called glowworms and fireflies.

Before going in I sit on the bench, watch the show – one of the many beauties that nature offers us – and can’t help thinking that the best things in life are free.

Their glow is caused by the combination of the airflow of oxygen and a chemical beneath their abdomen which they can regulate to create a pulsating pattern.

The males flash in order to attract a mate that generally stays on the ground until it sees an impressive display, and then responds with flashes timed to follow that of the male.

Fireflies aren’t really flies; they are beetles, and there are about 2,000 species of them.

Frogs love to devour them, and after digesting a number of them, they themselves actually begin to glow. I would love to witness that.

Sister Joel Gubler, O.P., previously of Rosaryville now lives in Kentucky.

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