Are barbs fin nippers?

Why do aquatic mammals have horizontally oriented tail fins?

Why do aquatic mammals like dolphins and whales have horizontally oriented tail fins while *fish* fish have vertically oriented ones? Because the earliest known fish 500 million years ago swam with a side to side motion, and most fish stayed that way.

Do fish drown in their food?

What they actually do is drown in their leftovers. Your fish may spend its entire life in 10 or 20 gallons of water, so the quality of that water dictates, to a large degree, whether – and for how long – they will survive. Overfeed them, and their uneaten food and/or excessive nitrogenous waste production can literally poison them to death.

What is the difference between fins and legs in a frog?

the legs of a frog help the frog move in water and on land, but yet the fins of a fish help it swim in water but it can’t move on land. What does the Ventral and dorsal fins mean?

Why do fish have Boney fins?

The Streamlined shape of the fish help it to move through the water quickly so it can escape predators. Also, the boney fins help keep the fish from rolling when it turns. Lastly, the fins also help maneuver the fish in water. What do fish use to swim? Fish swim with their fins.

How do the fins of a perch help it to swim?

For most fish, the fins help maintain balance while swimming. How does the shape of the perch help it to maneuver in the water? The Streamlined shape of the fish help it to move through the water quickly so it can escape predators. Also, the boney fins help keep the fish from rolling when it turns.

Why do cetaceans have horizontally flattened tails?

Cetaceans are so adapted to aquatic life that they cannot move or live on land, and they eventually evolved horizontally flattened tails because those are most suited for the way they move and swim. Why do marine mammals sway their tails vertically, while fish sway them horizontally?

Why don’t fish have a horizontal fin?

Fish muscles move the spine from side to side, which is why a vertical fin is necessary to propel the body forward in a slithering motion. A horizontal fin would not work very well, though I have read somewhere that there are a few rare fish with horizontal tails.

How does a fish bend its body?

They have a flexible backbone lined with large, powerful muscles, so their whole body can bend into S-shaped curves. A fish bends first one way, then the other, in a wavelike rhythm that passes all along its body. The opposite movements to the left and right cancel each other out, and the fish is pushed forward.

Do fish’s tails grow back?

Yes, fish’s tail and fins will grow back once they are damaged in any way. Fish has the ability to heal the wound, make new cells, and form tissues. Although this process isn’t fast, it fairly helps the fish to regain its missed body part.

Do fish need oxygen too?

Yes, fish need oxygen too. Fish frequently die when there is not enough oxygen dissolved in the water. This could be because the water is poorly aerated, there are too many other creatures consuming oxygen from the water, or because the water is too warm.

Why do fish have so few bones in their fins?

One reason is that, except for their dorsal fins, most fish don’t have many true bones in their fins (just soft or cartilaginous rays), whereas most amphibians, reptiles, birds, and mammals have many bones in their four limbs.

What is the function of the brain of a bony fish?

A bony fish’s brain is divided into three sections: the forebrain, the midbrain, and the hindbrain. The forebrain is responsible for the bony fish’s ability to smell. Bony fishes that have an especially good sense of smell, such as eels, have an enlarged forebrain. The midbrain processes vision, learning, and motor responses.

What are the adaptations of a perch?

A few adaptations of perch (really all fish) are the eyes, scales, fins, gills, mucous, etc. (There are a lot!) Eyes- see, Scales- protect from environment, Fins- help fish swim, Gills- breath underwater, Mucous- escape predators fast…

What is the function of flippers in fish?

Flippers in fish, also known as fins, are used primarily for stability and maneuvering. The pectoral fin can help fish dive, climb, turn left or right as well as back up. The pelvic fins help the fish maintain an upright position while swimming and the tail fin is responsible for forward movement and speed.

Are frogs fish-like?

What we know as frogs are never fish-like. Some fish, apart from those that live entirely in water, have developed a few frog-like characteristics, such as lungs, fins that act as appendages to walk, and some may live out of water on land for part of their life-cycle, but can never be classified as frogs – they are too fish-like !

Why do fish have gills and frogs don t?

Fish use gills to obtain oxygen, while frogs have lungs and can do gas exchange across theire skin. This requires moisture on their to be able to obtain oxygen, which is one reason they stay close to water. Tadpoles have gills.

Why is a frog not a toad?

A frog is usually not a toad because it has longer legs for jumping and swimming, smooth skin, a pointed snout and needs to live close to water to keep its skin from drying out.

Why do marine mammals have horizontal tails?

OK, so marine mammals evolved from creatures specialized for walking, with spines that flex up and down but not side to side. That means that to transmit the force from their spine to the water, the tail needs to be horizontal, not vertical. How much should you have saved for retirement by now?

Can a fish have a horizontal fin?

A horizontal fin would not work very well, though I have read somewhere that there are a few rare fish with horizontal tails. The fact that whales have horizontal flukes is easily interpreted by the fact that whales evolved from terrestrial mammals. Try bending side to side and then front to back.

What is the best fin shape for a fish?

If the spines moves sideways, a vertical tail fin is ideal. If the spine moves ‘up and down’, a horizontal tail fin is ideal. ‘Fish’ (in the paraphyletic sense) aren’t mammals and they have always lived in water.

Why are fish’s tails vertical and whales’flukes horizontal?

But cetaceans simply adapted to be able to swim without having to change the curvature of their spines. Are there any particular advantages to fishes’ tails being vertical and whales’ flukes being horizontal? Because that’s the way their spines are formed and how their spines move.

Why don’t whales have tails like other fish?

Because whales are not fish. They are mammals like cows, elephants, humans, etc. Fish have a different body form than mammals. Other marine mammals, like porpoises, dolphins, even seals, walruses and manatees, all have horizontal tails.

Why do snakes bodysurf?

The answer is that snakes use nearly the same motions in water as they do on land. When you see a snake essentially bodysurfing across the top of the water, it’s most often using the serpentine method discussed above. That’s true whether on a pond, a lake, and sometimes even on the sea

How do fish fins reduce drag?

As the fin moves side to side, pressure builds up on the thrusting side of the fin and decreases on the trailing side. The gradient causes water to move sideways across the body. This lateral motion can disrupt the boundary layer, the layer of water right next to the moving body (the fish), which is crucial to reducing drag.