Large number of blue whales found in South Georgia waters

The video discusses the blue whale population around South Georgia, near Antarctica. It highlights the historical decline due to hunting in the early 20th century and the subsequent research missions from 2018 to 2020, which spotted about 55 blue whales. Researchers used advanced acoustics and satellite tags to study the whales, collecting skin samples and using drones to assess their health. The findings suggest that whales may be returning to these waters for feeding, positively affecting their reproductive rates.

What was the primary reason for the decline in the blue whale population around South Georgia?

• Pollution

• Natural predators

• Climate change

• Extensive hunting

During which period did researchers conduct missions to spot blue whales in South Georgia?

• 2010 to 2012

• 2018 to 2020

• 2015 to 2017

• 2021 to 2023

What technology did researchers use to locate and identify blue whales?

• Sonar and radar

• Advanced acoustics and satellite tags

• GPS and drones

• Underwater cameras

What method did researchers use to assess the body conditions of the whales?

• Observing from boats

• Collecting skin samples and flying drones

• Weighing them

• Using underwater cameras

Why might the blue whales be returning to the waters of South Georgia?

• To migrate to warmer waters

• For feeding purposes

• To escape predators

• For breeding purposes