5 Questions
What is the first type of fish to have evolved?
Sea Squirts
How do sharks and rays stay in the water?
By using their fins and bodies
What is the most dangerous effect of stonefish poison?
Death
How do flying fish move?
They use the wind
What type of fishing method can collapse the food chain?
Bottom trawling
Study Notes
- Fishes have a great diversity in their center of diversity, with marine and freshwater fish species having their own special habitats.
- The first fishes evolved from sea squirts.
- Lampreys can be eaten in Europe, and hagfish are the only fish with a spine but no skull.
- Cleaner fishes protect other fishes from disease.
- Sharks and rays don't have swim bladders, so they use their fins and bodies to stay in the water.
- Sharks and rays don't have lungs, so they need to constantly swim to maintain a comfortable depth in the water.
- Stonefish poison can cause pain, swelling, necrosis, and even death in severe cases.
- Flying fish don't actually fly, they glide at high speeds using the wind.
- Tetrapods evolved from fishes and first evolved in the Devonian Period.
- Bottom trawling is a damaging fishing method that can collapse the food chain.
Test your knowledge about the diverse world of fish with these interesting facts about their evolution, behaviors, and habitats.
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