Salmon and Beaver Dams

The video explores the construction and ecological impact of beaver dams. Beavers build dams using branches and mud to create water-tight structures that hold back large volumes of water, forming habitats beneficial to various wildlife. However, these dams pose challenges for salmon, which must overcome them during their migration. Despite the obstacles, many salmon manage to cross the dams, showcasing their perseverance.

What materials do beavers use to construct their dams?

• Grass and stones

• Sand and clay

• Branches and mud

• Rocks and leaves

What is the primary purpose of the mud in a beaver dam?

• To block water and form a seal

• To create a habitat for birds

• To attract fish

• To provide food for beavers

What does the drone footage reveal about the beaver dam?

• The dam is used for human activities

• The dam is located in a desert

• The dam holds back a large amount of water

• The dam is made of rocks

Which animals benefit from the habitat created by beaver dams?

• Lions and tigers

• Fish, waterfowl, and moose

• Snakes and lizards

• Elephants and giraffes

What challenge do salmon face due to beaver dams?

• Finding food

• Avoiding predators

• Building their own dams

• Crossing the dam

How do salmon manage to overcome the obstacle of beaver dams?

• By waiting for the dam to break

• By digging tunnels

• Through perseverance

• By flying over them

What is the main obstacle for salmon on their journey?

• Beaver dams

• Lack of food

• Strong currents

• Predators

Which animal is not particularly fond of beaver dams?

• Beavers

• Ducks

• Moose

• Salmon