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Distraction eye, many fish have spot on the tail to fool potential predators and prey; both are not sure which is the front, the direction of travel. [133] Gills appear in unrelated fish, some amphibians, some crustacean, aquatic insects and some mollusk, like freshwater snails, squid, octopus. [134]
Snakehead fish : This family of fish consists of obligate air breathers, using their suprabranchial organs, which are a primitive labyrinth organ. The northern snakehead of Eastern Asia can "walk" on land by wriggling and using its pectoral fins, which allows it to move between the slow-moving, and often stagnant and temporary bodies of water ...
An affinity between the amphibians and the teleost fish is the multi-folded structure of the teeth and the paired supra-occipital bones at the back of the head, neither of these features being found elsewhere in the animal kingdom. [25] The Permian lepospondyl Diplocaulus was largely aquatic
The race of Cabira (one of Chilled's henchmen) is a race of fish-like humanoids from Dragon Ball; The Fish People from the radio broadcast Alexei Sayle and the Fish People; The Fishmen are a race of fish-like humans from the anime One Piece. They are modeled after different aquatic lifeforms. The Fishmen can breed with Giants to create Wotans.
A possible reason may have been competition for breeding ponds, to exploit drier environments with less access to open water, or to avoid predation on tadpoles by fish, a problem still plaguing modern amphibians. [37] Whatever the reason, the drive led to internal fertilization and direct development (completing the tadpole stage within the egg).
Axolotls can also eat feeder fish, but care should be taken as fish may contain parasites. [ 62 ] Substrates are another important consideration for captive axolotls, as axolotls (like other amphibians and reptiles) tend to ingest bedding material together with food [ 63 ] and are commonly prone to gastrointestinal obstruction and foreign body ...
The vertebrates include mammals, birds, amphibians, and various classes of fish and reptiles. The fish include the jawless Agnatha, and the jawed Gnathostomata. The jawed fish include both the cartilaginous fish and the bony fish. Bony fish include the lobe-finned fish, which gave rise to the tetrapods, the animals with four
During the day, amphiumas hide in vegetation, and at night they become active hunters. Their prey includes frogs, snakes, fish, crustaceans, insects and even other amphiumas. Hunting and eating habits have been observed to be very similar to that of the axolotl, including the sucking in of food by their stomachs with vacuum force. If provoked ...