Megalodon's extinction might have been caused by supernova explosion

The video discusses the megalodon, a prehistoric shark that could grow over 18 meters long, with teeth measuring up to 17.8 centimeters. It went extinct around 2.6 million years ago. Recent research suggests that cosmic radiation from nearby supernovae may have contributed to the extinction of large marine animals like the megalodon. The presence of ion 60 isotopes in prehistoric seabed deposits supports this theory. These isotopes, along with muons, could have caused mutations and cancer in marine life, with the megalodon's large size and shallow water habitat making it particularly vulnerable.

How does the size of the largest megalodon tooth compare to that of a great white shark?

• It is half the size.

• It is the same size.

• It is three times the size.

• It is twice the size.

What new hypothesis is proposed for the extinction of large marine animals like the megalodon?

• Climate change

• Overfishing

• Cosmic radiation from supernovae

• Volcanic eruptions

What isotope found in prehistoric seabed deposits is linked to supernovae?

• Carbon-14

• Ion 60

• Uranium-238

• Potassium-40

What are muons, and how do they affect living organisms?

• They are harmless particles.

• They cause mutations and cancer.

• They are a type of virus.

• They provide energy to cells.

Why was the megalodon more susceptible to cosmic rays?

• Its large size and shallow water habitat

• Its diet

• Its small size

• Its deep-sea habitat