frozen pond

How do fish survive when ponds and lakes freeze?

When a lake freezes, only the top layer actually freezes over. The area beneath the ice is where fish survive. This is due to something called...
FM Radio Dial

Why do FM radio stations end in odd numbers?

FM radio stations end in odd numbers to prevent interference. The reason they are odd numbers rather than even numbers is that 1 (odd...
bags under the eyes

Why do we get bags under our eyes when we are tired?

There are two main reasons we can get bags under our eyes when we are tired: dehydration and fluid accumulation. First, when humans are tired,...
bird chirp

Can different bird species understand each other?

Birds communicate in various ways, but i'll be focusing only on audible communication in this post. Robert D. Magrath, a behavioral ecologist at the Australian...
a school of blue fish

Do fish sleep?

While most fish rest by reducing their activity and metabolism, the way fish "sleep" is different from the way land mammals sleep. Most fish don’t...

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