
Common glow-worm
Despite the name, the glow worm is a beetle and not worm-like at all.
Field Guide · Chapter 21 of 29
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Despite the name, the glow worm is a beetle and not worm-like at all.

Males fly in a J shape and flash on the way up, which is how the big dipper firefly got its name.

A dung beetle that the ancient Egyptians venerated.

A whole life cycle can take as little as 21 days.

Its larvae are very aggressive and likely to influence the native species where they arrive.

Its larvae are hurt once temperatures rise above 22 °C.

With no males around, the females still lay eggs, and those eggs hatch into females only.

The pet and lab trades turned this insect into a staple feeder in half a century.

One colony can grow to as many as 5 million workers.

An adult bed bug can last as long as six months between feedings.

Lice are obligate ectoparasites, so they live off the blood of humans.

Its eggs are the largest and heaviest of any leaf insect.
Every photograph and every outline comes from a real, openly licensed image, credited at the bottom of its card. Only plain charts are drawn.
The words on these cards are written by AI from the sources named on each card. Software matched every number and claim to a sentence in those sources. Mistakes are still possible, so follow a card's links before relying on it.
Globe dots are real recorded sightings from GBIF. Where a card says native range only, they are clipped to that range. Otherwise they can include zoos, gardens and places the species was introduced.