Fireflies talk in their own languages

Fireflies talk in their own languages

← back Fireflies talk in their own languages   Advice from a firefly: Look on the bright side! Fireflies are insects that glow at night. They light their bellies with chemicals in their bodies and in the air. Each firefly species flashes with its own sequence to...
You get a new skeleton every 10 years

You get a new skeleton every 10 years

← back You get a new skeleton every 10 years During your whole life, your bones are replacing themselves. They adapt in shape, size, and place to fit all the amazing things you do.  So about every 10 years, you have a whole new skeleton. But why do we even need bones?...
Why are clouds in the sky?

Why are clouds in the sky?

← back Why are clouds in the sky? Have you ever wished you could fly and touch the clouds? They look fluffy from down here, but are they really?  Let’s find out what they’re made of — and how exactly they get up there. What are clouds made of?   Clouds are made of...