Which Fish Did We Evolve From?

The video explains how fish evolved to develop limbs and move onto land millions of years ago. Initially, bony fishes branched into ray-finned and lobe-finned groups. A mass extinction event led to the dominance of ray-finned fishes, while some lobe-finned fish adapted to life on land, eventually giving rise to all four-limbed vertebrates.

What percentage of today's fish have delicate fins?

• 50%

• 75%

• 100%

• 99%

What are the two groups that bony fishes branched into?

• Cartilaginous and bony

• Sharks and rays

• Jawless and jawed

• Ray-finned and lobe-finned

Which type of fish initially outnumbered the other?

• Jawless

• Cartilaginous

• Lobe-finned

• Ray-finned

What event caused a significant change in the dominance of fish types?

• A meteor impact

• A volcanic eruption

• A mass extinction

• A sea level rise

What did the surviving lobe-finned fish eventually evolve into?

• Invertebrates

• Birds

• Amphibians

• Four-limbed land creatures