Understanding Narwhals

The video explores the unique features of narwhals, focusing on their tusks. Narwhals are known as the 'unicorns of the sea' due to their long, spiral tusks, which are actually teeth. The video explains how these tusks grow and differ from those of other animals like elephants and walruses. It also discusses the potential uses of narwhal tusks for sensing the environment, communication, and feeding. Despite their fascinating nature, much about narwhals remains a mystery due to their elusive behavior and remote habitat. The video concludes by encouraging viewers to engage with questions and comments.

What makes the narwhal's tusk similar to a unicorn's horn?

• Its color

• Its length

• Its position on the head

• Its texture

How does a narwhal's tusk differ from an elephant's tusk?

• Narwhal's tusk is shorter

• Narwhal's tusk is straight and twisty

• Narwhal's tusk is smooth

• Narwhal's tusk is curved

What is unique about the growth of a narwhal's tusk?

• It grows from the mouth

• It grows through the head

• It stops growing at maturity

• It grows in pairs

Why is it difficult for scientists to study narwhals?

• They are too small to track

• They are aggressive

• They live in warm waters

• They are shy and live in remote areas

What is one way scientists believe narwhals use their tusks?

• To build nests

• To dig in the sand

• To attract mates

• To sense the ocean environment

What have scientists observed narwhals doing with their tusks?

• Using them to swim faster

• Using them to bop fish

• Using them to break ice

• Using them to fight predators

What is a mystery about narwhals' tusks?

• Why they are so heavy

• How they are used for hunting

• How they help in communication

• Why they are so colorful

What is one theory about why narwhals touch tusks?

• To clean them

• To measure their length

• To communicate with each other

• To sharpen them

Why do scientists have many questions about narwhals?

• They are too common

• They are rarely seen

• They are a new species

• They are easy to study

What is a question scientists still have about narwhals?

• Why they are so large

• Why they live in warm waters

• Why only some females have tusks

• Why they are so colorful