Randall and his team track hammerhead sharks using a network of receivers across the eastern tropical Pacific. These sharks often roam outside protected areas, encountering fishing gear, which has led to a significant population decline. Scalloped hammerheads are critically endangered due to overfishing. Over 100 million sharks are killed annually for their fins, threatening their existence and the balance of underwater ecosystems. The video also promotes 'Epic Adventures with Bertie Gregory' on Disney Plus.

What method does Randall use to track hammerhead sharks?

• Satellite imaging

• Network of receivers

• Underwater cameras

• GPS collars

What does the presence of hooks in sharks' mouths suggest?

• They are venturing outside protected areas

• They are being tagged

• They are migrating to colder waters

• They are being fed by researchers

What has happened to the hammerhead population at Kokos in the last 20 years?

• It has doubled

• It has remained stable

• It has vanished completely

• Half of it has disappeared

Why are scalloped hammerheads critically endangered?

• Due to habitat loss

• Because of pollution

• Because of climate change

• Due to overfishing

How many sharks are killed annually for their fins?

• 200 million

• 50 million

• 10 million

• 100 million

What role do sharks play in underwater ecosystems?

• They are decomposers

• They are primary producers

• They are prey for larger fish

• They are top predators

What is the consequence of removing sharks from ecosystems?

• More fish for human consumption

• Ecosystem imbalance

• Cleaner oceans

• Increased biodiversity