Sunfish Biology and Characteristics

What unique body part does a sunfish have instead of a traditional tail?

• Dorsal fin

• Caudal fin

• Clavus

• Pelvic fin

How does a sunfish manage to dive and surface without a swim bladder?

• It has a gas-filled organ like other fish.

• It uses its powerful fins to push itself up and down.

• It has a jelly-like layer of flesh that is 90% water.

• It changes the density of its bones.

Why do sunfish often float on their side at the ocean's surface?

• To attract mates.

• To warm up and allow seabirds and smaller fish to clean off parasites.

• To rest after long dives.

• To hide from predators.

What is a notable characteristic of the sunfish's brain compared to its body size?

• It has a very large brain for its size.

• It has one of the lowest brain-to-body ratios in the animal kingdom.

• Its brain is located in its tail.

• Its brain is highly developed for complex tasks.

What percentage of sunfish offspring typically do not survive?

• 50%

• 75%

• 90%

• 99.999%

How much can a sunfish larva increase its weight from hatching to adulthood?

• 60 thousand times

• 60 million times

• 60 billion times

• 600 million times

What is a primary food source for sunfish, despite its low nutritional value?

• Small fish

• Algae

• Jellyfish

• Shrimp

How do sunfish process their food since they don't chew with their beak?

• They swallow prey whole

• They use strong stomach acids

• They have claw-like teeth in their throat

• They filter feed through gills