Salmon Migration Challenges and Survival

The video follows a salmon's journey back to its birthplace to spawn. Using its memory, the salmon navigates through challenging environments, including rapids and waterfalls. Despite exhaustion and energy depletion, only the strongest salmon survive to reach their spawning grounds, overcoming significant obstacles along the way.

How does the salmon find its way back to its birthplace?

• By relying on sights and smells

• By using a map

• By following other fish

• By following the stars

What kind of obstacles does the salmon face on its journey upstream?

• Calm lakes and ponds

• Fast flowing rapids and whirlpools

• Sandy beaches

• Dense forests

What makes the salmon's journey particularly challenging?

• The presence of predators

• The lack of food along the way

• The need to swim against the current

• The long distance to travel

What happens to many salmon as they progress on their journey?

• They grow stronger

• They start feeding more

• They find new spawning grounds

• They begin to waste away

What percentage of salmon typically do not survive to spawn?

• 90%

• 70%

• 50%

• 10%

What is the final challenge the salmon must overcome to reach its spawning grounds?

• Climbing a mountain

• Crossing a desert

• Jumping over waterfalls

• Navigating through a maze

How does the salmon manage to overcome the final obstacles?

• By thrashing its tail to power up

• By swimming faster

• By following other fish

• By resting frequently