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Opposable Thumb Definition

An opposable thumb moves independently from the fingers on the human hand. It helps in grabbing objects.

View Lesson on External Animal Parts
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External Animal Parts

LESSON MATERIALSmove

Fun Facts

  • Opposable thumbs help primates grab things.
  • Humans use opposable thumbs to open bottles.
  • Opposable thumbs allow people to easily use scissors.

Why Do We Need To Know About Opposable Thumb

Learning about the opposable thumb shows us how humans and primates to do everyday things and succeed in jobs. Our opposable thumbs let us grab and hold onto stuff. This is key for doing everything from opening bottles to using special tools for work.

Surgeons and dentists need their opposable thumbs to use their tools during operations and treatments. Artists, builders, musicians, chefs, engineers, and athletes all need their thumbs to handle and use things important for their jobs. This shows how important our thumbs are for normal tasks and many kinds of jobs.

Frequently Asked Questions

How does an animal use its tail to help it survive?
Tails help animals swim, balance and can even protect them from predators, like the lizard, who can make its tail fall off while it runs away.
What are some things that claws are used for?
Claws can be used for digging to get food or to build a home. Animals can also use them for self-defense.
What do animals use their legs for?
Animals use their legs to move, climb, dig, run and even jump like a frog.
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