Understanding Giraffes: The Mystery of Their Long Necks

What makes a giraffe's neck different from a human's, despite having the same number of vertebrae?

• Giraffes have fewer vertebrae.

• Giraffe vertebrae are longer and have ball-and-socket joints.

• Giraffes have more vertebrae.

• Giraffe vertebrae are fused together.

How do ball-and-socket joints benefit a giraffe's neck?

• They reduce the neck's flexibility.

• They make the neck shorter.

• They allow the neck to be more flexible.

• They make the neck heavier.

What is one theory about why giraffes have long necks?

• To fly.

• To dig underground.

• To swim better.

• To reach higher food sources.

What is 'necking' in giraffes?

• A way to attract mates.

• A method of communication.

• A fighting behavior using their necks.

• A way to cool down.

Why is the exact reason for giraffes' long necks still unknown?

• Because giraffes are extinct.

• Because giraffes do not have necks.

• Because giraffes have short necks.

• Because there are multiple theories but no definitive answer.