General Awareness – Fish Facts File
1-Fish are cold-blooded, aquatic animals that have scales, gills and fins
2- The earliest known fish were the ostracoderms, a now-extinct group of jawless fish that appeared in the Cambrian Period, about 510 million years ago. Some Fish, like the Triggerfish, can swim backward.
3-The smallest fish in the world is Paedocypris Progenetica, in the family Cyprinidae .Most brands of lipstick contain fish scales
4-The world’s largest fish is the Great Whale Shark or Rhincodon typus which grows to more than 65′ (15 metres) in length, 23 feet of a girth, and 10 tons, 47,300 pounds in weight.Many Fish can taste without even opening their mouths.
5-Herrings communicate through farts.The world’s largest sea turtle is Leatherback, it can grow over 3 meters (10 ft) and can weigh more than 2,000 pounds.
6-Goldfish can’t close their eyes as they have no eyelids.The longest alive bony fish on earth is Oarfish, the king of herrings
7-Many fish species are known to change sex during the course of their lives.The world’s largest known freshwater fish is Kaluga or Great Siberian Sturgeon has been recorded at 2200 lb (1000 kg), being as large as most great white sharks.
8-Sharks kill 12 people per year, while people kill 11,417 sharks per hour.
9-Goldfish can see infrared radiation that is invisible to us.
10-The fastest fish are Sailfish and Wahoo can exceed speed 90 kph, Tuna, Marlin, Swordfish and Mackerel swim with speed 50 kph, while the average fish have maximum speed of 20 kph.There’s a shark in Greenland that eats polar bears and can live up to 200 years
11-One Puffer Fish contains enough poison to kill 30 people.
12-If you keep a goldfish in a dark room, it will lose its color
13-80% of the biomass of fish in the world’s oceans has been lost in the past 100 years.
14-Thousands of marine creatures die by mistakenly swallowing plastic bags that resemble jellyfish
15-Starfish don’t have brains. Special cells on their skin gather information about their surroundings.
16-There is a starfish with 40 arms.
17-The Spotted Climbing Perch, also called Climbing Gourami and Walking Fish, a freshwater fish that can leave its waterhole when it dried up and walk on land to another waterhole. The Sea Anemone looks like a flower, but it’s actually a carnivorous animal that eats small fish and shrimp
18-Starfish do not have blood. Their blood is actually filtered sea water.
19-“Rain of fish” is an annual weather event in which hundreds of fish rain from the sky onto the city Yoro in Honduras
20-Starfish can re-grow their arms. In fact, a single arm can regenerate a whole body.
21- Lungfish, a slender-bodied and almost scaleless fish that breathes with a lung as well as by gills. The Lungfish can live out of water for as long as 4 years.Fish in polluted lakes lose their sense of smell.The most poisonous fish in the world is the Stonefish, a master of camouflage, which lives off the coast of Australia on the sea bottom and around coral reefs, and hides among rocks
22-Goldfish can distinguish the music of one composer from another.
23-A 10-Year-Old Goldfish Had a 45-Minute Surgery To Remove A Tumor in 2014
24-When Anglerfish mate, they melt into each other and share their bodies forever
25-A sardine is not a species of fish, but a name that can apply to many small varieties of pickled fish, including herring and pilchard
26-A robotic fish was accepted by other fish and became their leader during an experiment by NYU.
27-The goliath tigerfish is a fish that eats small crocodiles.
28-A koi fish named “Hanako” lived for 225 years.
29-The Salema Porgy is a species of fish that can cause hallucinations when eaten. In Ancient Rome it was consumed as a recreational drug
30-Fossil evidence suggests that fish have been on Earth for about 530 million years
31-The opah, or “moonfish”, is the only known fully warm-blooded fish.
32-Goldfish don’t have stomachs and should therefore be fed easily digestible food in lots of small feeding sessions
33-There’s a species of fish called “Slippery Dick”
34-The four-eyed fishes, Anableps, belong to family Anablepidae. They have only two eyes each, but the eyes raised above the top of the head and divided in two different parts, so that they can see below and above the water surface at the same time
35-The coldest Temperature Living fish is Polar codfish, Boreogadus saida, also known as Arctic Cod, is comfortable at 2ºC below zero