Animals undergo changes

With each generation

Changes that are so small

That they’re difficult 

To see with the naked eye

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Over many millions of years

Scientists have revealed

How these changes have 

Completely altered 

Many animals

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This evolutionary process

Helps these animals to adopt

To their environment 

In which they live

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The results are modifications 

Through a series 

Of mutations

That affect the characteristics

Of animals

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Butterflies, owls, and birds

Have evolved ways of camouflage

Whether they live in the Artic

Or warm climates

These same species may look

And appear different in various regions

- – -

Some species have vanished

All together

Like the golden toad

Of Central America

That once lived on forest-floor pools

- – -

Like humans

Moles in some parts of the world

Have evolved to be different colors

But are the same basic specie

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Dogs are descendants

Of the gray wolf

And through artificial selection

Their gene pool was

Manipulated for us

To enjoy different breeds

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Some animals

That live today like the tapir

Were once relatives to those

That migrated eons ago

That dwelled in different land masses

Coming from South East Asia

To Central and South America

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