Top 10 fishs facts

Fish. The ampullae of Lorenzini (sing. ampulla) are special sensing organs called electroreceptors, forming a network of jelly-filled pores. They are mostly discussed as being found in cartilaginous fish (sharks, rays, and chimaeras). They provide fish with an additional sense capable of detecting electric and magnetic fields as well as temperature gradients.

Killer whales. Fish-eating killer whales prey on around 30 species of fish. For some dolphins species, Killer whales is the most deadly predator, and it is also a dolphin! Orcas feed on a wide variety of fish, mollusks, and crustaceans, but if they find a dolphin, they do not hesitate to grab it and feed on it. They usually catch the smallest individuals, the small species or the young dolphins

Fish. The arapaima are large species of bonytongue in the genus Arapaima native to the Amazon and Essequibo basins of South America. They are among the world's largest freshwater fish, reaching as much as 3 m (9.8 ft). They are an important food fish.

Mola alexandrini. The heaviest bony fish ever caught weighs in at a staggering 5,070 lbs. (2,300 kilograms). Mola alexandrini has a relatively small mouth and its teeth fused into a parrot-like beak. It can reach up to 3.3 m (11 ft). Their body is flat and round, with large fins that they swish back and forth to propel themselves with as they swim horizontally. Mola alexandrini hav no caudal bones, ribs, and pelvic fins and have fused vertebrae, leaving only their median fins to propel themselves.

Over 750. The slender snipe eel (Nemichthys scolopaceus) is a fish that can weigh only a few ounces, yet reach 5 feet or 1.5 m in length. Features include a bird-like beak with curving tips, covered with tiny hooked teeth, which they use to sweep through the water to catch shrimp and other crustaceans. It has more vertebrae in its backbone than any other animal, around 750.

Fish. The first genetically modified animal to be commercialized was the GloFish, a Zebra fish with a fluorescent gene added that allows it to glow in the dark under ultraviolet light. It was released to the US market in 2003. GloFish available in pet stores are now sold in bright red, green, orange-yellow, blue, pink, and purple fluorescent colors. In the European Union, the placing on the market and breeding of genetically modified animals is prohibited.

Uses a camouflage. As all frogfishes, A. hispidus is a voracious carnivore which will devour all right-sized prey that pass within reach, usually other fish, but sometimes even its own kind. It can swallow prey its own size. Frogfish are skilled hunters and some species are capable of blending into local environments such as coral reefs. A frogfish can camouflage itself so well that prey fish will swim close by without seeing the predator lurking before them. Then, before the prey knows it, he's eaten in about 6 milliseconds!

Fish. The spotted eagle ray (Aetobatus narinari) is a cartilaginous fish of the eagle ray family, Myliobatidae. This ray can be identified by its dark dorsal surface covered in white spots or rings. The rays are considered near threatened on the IUCN Red List. They are fished mainly in Southeast Asia and Africa, the most common market being in commercial trade and aquariums. They are protected in the Great Barrier Reef.

Ca. 400 years. The shark is the world's oldest creature with a backbone, and may have been born as early as 1505 — when Istanbul under the Ottomans was just 52 years old. Using radiocarbon dating, scientists analyzed the eye lenses of 28 Greenland sharks, finding the oldest sample to be 392 years old.

Poppers . Surface lures are also known as top water lures, poppers and stickbaits. They float and look like fish prey that is on top of the water. They can make a popping, burbling, or even a buzzing sound. It takes a long time to learn how to use this lure effectively