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Nature Study: Bioluminescence

Have your kids ever seen pictures of glowing jellyfish , fireflies lighting up a summer night, or deep-sea creatures that shimmer in the dark? That magical glow is something called bioluminescence —and it’s one of nature’s most fascinating light shows! Angler Fish craft My class recently participated in a STEM workshop where they learned about bioluminescence in the deep sea. They learned about deep sea creatures like the Angler fish and how bioluminescence was part of their adaptation to the dark depths. They also had a blast making their own Angler fish complete with antennaes. Coincidentally, on this day we got to the chapters in ' The Wild Robot Escapes ' where Roz the robot was exploring the deep ocean and learning about bioluminescence, echolocation and the predatory nature of seabirds like the Skuas . (That's for another blog post!) For children, learning about bioluminescence offers an incredible way to bring science, nature, and imagination together. It’s a to...
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Nature Study: Cicadas

The Amazing Life Cycle of a Cicada

Have you ever heard a loud buzzing sound in the summer? It might be the cicadas! Cicadas are fascinating insects with an unusual life cycle. Let's learn more about these cool critters and their journey through life.

Stage 1: The Egg

Every cicada's life starts as a tiny egg. Cicada mothers lay these eggs in tree branches. They carefully slice into the bark of a tree and tuck the eggs inside. After a few weeks, these eggs hatch into tiny nymphs, which are baby cicadas.


Stage 2: The Nymph

When the eggs hatch, the nymphs fall from the tree and burrow underground. They dig deep into the soil, where they live for several years! Some cicadas stay underground for a short time, while others live there for up to 17 years! During this time, the nymphs feed on tree roots and slowly grow bigger.


Stage 3: Emerging from the Ground

After years of hiding underground, the nymphs are ready to come out! On a warm summer night, they dig their way up to the surface. Once above ground, the nymphs climb onto trees, plants, or anything tall they can find.


Stage 4: The Adult Cicada

Now comes the big transformation! The nymphs shed their old skin and turn into adult cicadas. When they first emerge, they are soft and pale, but soon their bodies harden, and they get their dark wings. Now they are fully grown, and it’s time for them to make a lot of noise!


Stage 5: Singing and Mating

Adult cicadas love to sing! The males make a loud buzzing sound to attract female cicadas. They have special organs called *tymbals* on their sides that they vibrate to produce the sound. The females hear this song and choose a mate.

After mating, the females lay eggs in tree branches, and the life cycle begins again. Adult cicadas don’t live very long—only about a few weeks—but they make sure the next generation is ready to start underground.

Cool Cicada Facts

  • Some cicadas only come out every 13 or 17 years! These are called periodical cicadas.
  • Cicadas are harmless to humans. They don’t bite or sting.
  • Cicadas are some of the loudest insects in the world! Their buzzing can be heard from far away.

Take Away

The life cycle of a cicada is truly incredible. From living underground for years to finally emerging and filling the summer air with their songs, cicadas show us how nature works in amazing ways. Next time you hear that buzzing sound, you’ll know the secret story of the cicadas!

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