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Book 30, Question 58 · Video

How do lake trout lay their eggs over cold rocks?

Video · 1:46 · Crafty Clover explains, from A Million Whys Book 30

Lake trout live in cold, deep, clear lakes. In the fall, when the water cools, they move to shallow rocky reefs, often at night. They do not build nests. They scatter their eggs over clean stones, and the eggs slip into the gaps between rocks, where they stay hidden through the winter. The young hatch in spring. Clean, rocky lake bottoms are important for lake trout.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How do lake trout lay their eggs over cold rocks?

The Big Idea

Lake trout lay their eggs in a special way! They don't build nests. How do they do it?

Cold Home

Step one: Cold Home. Lake trout live in cold, deep, clear lakes. In fall, when the water cools, they move to shallow rocky reefs, often at night.

Scattering Eggs

Step two: Scattering Eggs. Lake trout don't build nests. They scatter their eggs over clean stones, and the eggs slip into the gaps between the rocks.

Winter Hideout

Step three: Winter Hideout. The eggs stay hidden in the gaps through the winter. The young hatch in spring, so clean, rocky lake bottoms are important for lake trout.

A Closer Look

Let's take a closer look! Clean. Hiding spots. Tucked in. Hatching time.

Quick Facts

Quick facts! A lake trout can live for decades and grow longer than a yardstick. They spawn at night. No nests built. Clean rocks matter.

Think Like a Scientist

Now, think like a scientist! Draw a lake reef from the side. Draw big stones with gaps between them. Draw eggs hidden in the gaps. Add a hungry fish above. Why are the gaps useful?

Outro

Lake trout live in cold, deep, clear lakes, and in fall they move to shallow rocky reefs and scatter eggs over clean stones without building nests. The eggs hide in the gaps through winter and hatch in spring. Science is amazing! Remember, every big discovery starts with a small question. Keep looking, keep learning, and keep asking why! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

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