Fish

There are many classes of fish which do not have scales nor fins. The Agnatha has neither fins nor scales; the Condrichthye, including sharkes, rays and skeats have fins but no scales; the Ostichthyes, of which several families have members with the common name, mackerel, with both scales and fins. The King Mackerel, S. cavalla, has very tiny scales and fins.

Goldfish typically take about 24 to 36 hours to digest their food. It can vary depending on factors such as the size of the food particles and the temperature of the water. Overfeeding can lead to digestive issues in goldfish, so it's important to feed them in moderation.

The lateral line provides a fish's sense of hearing and orientation. it contains a complex system of receptors that convert mechanical disturbances or submarine vibrations into nerve impulses. Essentially, it is a fish's underwater ears.

Yes, fish can develop arthritis. Arthritis in fish usually occurs in the joints, causing inflammation and discomfort. Factors such as injury, infection, or genetics can contribute to the development of arthritis in fish.

Remora fishes have a special adhesive disc that allows them to attach to the shark without being eaten. They feed on parasites and leftover scraps from the shark's meals without harming the shark. Additionally, the relationship between the two species is often mutually beneficial as the remoras help keep the shark clean.

Most Puffer Fish are compatible with fish around the same size of the Puffer Fish. If you have a fish a lot bigger, or smaller than the puffer, it has a lower chance of being "nice" to the other fish.

White perch are opportunistic feeders with a varied diet including small fish, crustaceans, and insects. They typically inhabit brackish and freshwater environments such as estuaries, rivers, and lakes, where they can thrive in a wide range of water conditions. White perch are known for their adaptability and ability to quickly colonize new habitats, making them successful invasive species in some areas.

Trout are opportunistic feeders and will eat a variety of aquatic insects, crustaceans, small fish, and even small mammals if available. They primarily feed on insects like mayflies, caddisflies, and midges, as well as smaller fish, crustaceans, and terrestrial insects that fall into the water. They are also known to feed on algae, plant matter, and fish eggs.

Acanthopterygii is the superorder of fish that contains the most species, with over 13,000 species. It is a diverse group that includes many familiar fish such as perch, snappers, and groupers.

The value of jellyfish can vary depending on the species, size, and demand. Some jellyfish are considered a delicacy in certain cuisines and can be sold for high prices in seafood markets. Others, like moon jellyfish, are often used as aquarium pets and can range in price from $10 to $100.

A fish's strongest sense is typically its sense of smell. They use their keen sense of smell to detect food, predators, and even to find their way back to their spawning grounds.

Parrotfish come in a variety of colors including shades of blue, green, yellow, orange, and red. They are known for their vibrant and iridescent scales which can change color depending on their environment and mood.

Well tonsile are actually Lymph nodes and every animal has such organs for protection against invading organisms

An omnivore is a kind of animal that eats either other animals or plants. Yes, guppies eat a variety of fish food, from flake foods to brine shrimp, microworms, blood worms etc., they will also eat their young or any other small fry. Guppies will snack on any algae they find in the tank.

Lead is a commonly used heavy element for fishing weights due to its density and availability. However, there is increasing concern about its environmental impact, leading to the development of alternative materials like tungsten or steel.

Tuatua shellfish live near the river mouth on a sandy beach, not often found anymore due to over harvesting, always place empty shells above the high tide line to avoid spreading disease through the live Tuatua beds. They habitat below the low tide mark and can only be got at low tide as a result.

Lampreys are not decomposers. They are consumers.

no, it is a fish, and amphibian would be able to live between water AND land. a whiting cannot

The Brown Trout (Salmo Trutta) is not an omnivore, in fact, it is a carnivore. The Brown Trout's diet consists mainly of insects and small invertebrates, such as shrimp, stonefly, and stonefly.

Generally, fishes do not eat people. While there have been rare cases of fish biting humans, usually it is due to mistaken identity, territorial behavior, or curiosity, rather than intent to eat. It is important to avoid provoking or feeding wild fish to prevent unwanted interactions.

Pupfish are primarily omnivores, meaning they eat a diverse diet that includes both plant and animal matter such as algae, insects, and small crustaceans. However, the exact diet can vary depending on the species and the specific environment they inhabit.

sea sheds,perches,carps,mackerels,cat fishes,salmon(trout) etc.

Those are the flippers, or 'pectoral' fins.

Puffer fish primarily feed on a diet of algae, mollusks, crustaceans, and small fish. Some species also consume plankton and other small invertebrates as part of their diet. It's important for puffer fish to have a varied diet to ensure proper nutrition and health.

Carp are fish; fish are vertebrates, and all vertebrates have bilateral symmetry. This means they have symmetry across one plane (known as the sagittal plane, and directly down the centre of their body), which means one side of their body approximately mirrors the other side.