Female fireflies in which genus are known to mimic the flash patterns of other firefly species in order to lure and eat the males?

Nature

Railroad worm larvae are notable for emitting light of which color from photophores on their sides, a trait unique among insects?

Railroad worms (beetle larvae) have glowing tail tips for defense—but also glow red from photophores on their sides, unique among insects.

Nature

The bioluminescent glowworms famous for illuminating New Zealand's caves are actually the larval stage of which type of insect?

Glowworms in New Zealand caves produce sticky silk threads that dangle like fishing lines, luring insects to their glow—then eating them mid-flight.

Nature

For a firefly's flash to successfully attract a mate rather than being ignored, what must it precisely match?

Fireflies flash in species-specific patterns—wrong timing or color means no mate. Some predatory fireflies mimic other species to lure and eat them.

Nature

Which of these fruits meets the strict botanical definition of a 'true berry'?

Bananas are berries, but strawberries aren't. A berry develops from a single flower's ovary; strawberries develop from multiple ovaries of one flower.

Nature

Which animal produces silk strong enough that it was historically tested as a bullet-resistant material, yet spins it from organs in its abdomen rather than its mouth?

A single spider-silk thread thinner than a human hair can stop a flying bumblebee — its strength-to-weight ratio exceeds that of Kevlar.

Nature

At underwater cleaning stations, what do cleaner fish primarily eat off the bodies of sharks and rays?

Cleaner fish eat parasites off sharks and rays while the predators remain motionless—some sharks visit specific cleaning stations like underwater spas.