Shark Species and Adaptations

The video explores the fascinating diversity of sharks, highlighting unique adaptations beyond the typical Hollywood portrayal. It covers the Greenland shark's longevity, the thresher shark's tail, the sawshark's snout, the goblin shark's jaw, the wobbegong's stealth tactics, the frilled shark's teeth, and the catshark's biofluorescence. Each species showcases remarkable evolutionary traits that aid in survival and hunting, emphasizing the need to look beyond common perceptions to appreciate the true diversity of sharks.

How many different shark species are there worldwide?

• 750

• 500

• 250

• 100

What is the estimated maximum age of the oldest Greenland shark tested?

• 512 years

• 400 years

• 150 years

• 272 years

Which shark is known for its long lifespan, possibly due to cold water?

• Thresher shark

• Goblin shark

• Catshark

• Greenland shark

What adaptation allows the thresher shark to dismember its prey?

• Sharp teeth

• Powerful tail fin

• Fast swimming speed

• Camouflage

What unique feature does the sawshark use to locate and capture prey?

• Electroreceptors on its snout

• Sharp claws

• Fast swimming speed

• Bioluminescent skin

What makes the goblin shark's jaw unique?

• It glows in the dark

• It is fused to the skull

• It can be fired forward

• It is covered in scales

How does the wobbegong shark capture its prey?

• By ambushing them

• By using its whip-like tail

• By chasing them

• By glowing in the dark

What is a distinctive feature of the frilled shark's teeth?

• They are backward-facing

• They are retractable

• They are forward-facing

• They are bioluminescent

What adaptation helps the catshark survive in deep waters?

• Thick skin

• Biofluorescence

• Fast swimming

• Sharp teeth

What is the primary purpose of the catshark's biofluorescence?

• To find mates

• To scare predators

• To attract prey

• To navigate