Why We Sucked At Counting Fish (Until Now)

The video explores the transformation of the Milky Way into a galaxy with 400 billion stars. It contrasts this with the challenge of counting fish in Earth's oceans, traditionally done with trawls. Modern methods using sonar technology have revealed fish populations to be much larger than previously thought, as fish often evade nets. The video highlights the bristle mouth fish as the most populous vertebrate, with a population in the quadrillions, and discusses how deep-sea fish use bioluminescence to communicate and evade capture.

What technological advancement has significantly improved our understanding of the Milky Way galaxy?

• High-powered sonar

• Bigger and better telescopes

• Fish trawls

• Bioluminescent markers

What method did Spanish researchers use in 2010 to count fish more accurately?

• Underwater cameras

• Ultra high-powered sonar

• Satellite imaging

• Traditional fish trawls

Why were previous fish population estimates significantly lower than current estimates?

• Fish were overcounted in previous methods

• Fish actively avoid approaching trawls

• Sonar technology was not available

• Fish populations have increased recently

Which deep ocean fish is now considered the most populous vertebrate on Earth?

• Fang tooth

• Lantern fish

• Bristle mouth

• Stoplight loosejaw

How do deep ocean dwellers like the Fang tooth and Lantern fish possibly avoid fish trawls?

• By swimming faster

• By using bioluminescent spots as warning cues

• By hiding in coral reefs

• By changing their color