The Sardine Run

The video explores the sardine run, a major marine event where millions of sardines migrate, attracting numerous predators. It explains altitudes, highlighting sardines' swimming depths and how ocean currents affect their movement. Dolphins and gannets are key predators, with dolphins herding sardines into bait balls and gannets diving from above. The feeding frenzy concludes as sardines reach deeper waters.

What is the sardine run primarily characterized by?

• Sardines staying close to the shore

• Sardines diving deep into the ocean

• Sardines swimming in circles

• A large number of sardines migrating and being followed by predators

How are altitudes below sea level expressed?

• As positive numbers

• As whole numbers

• As negative numbers

• As fractions

What happens to sardines as they approach the coast?

• They are pushed upwards by ocean currents

• They stop migrating

• They swim faster

• They dive deeper into the ocean

At what depth do common dolphins prefer to feed?

• At -35 meters

• Near the surface

• At -100 meters

• At -45 meters

What is the role of gannets in the sardine run?

• They protect sardines from other predators

• They swim alongside sardines

• They dive from above to catch sardines

• They herd sardines into bait balls