10 most difficult fish riddles A list of fish related questions that are most often answered incorrectly Animals quiz How long can Koi carp live?30 - 50 years. Koi was bred in the 18th century in Japan. Since then, more than 120 varieties of this fish have been created on the cross road. He is very easy to get acquainted with, meets his tutor and eager to swim with him. These fish allow you to even strok and feed from your hand. Koi are long-lived, live on average from 30 to 50 years, also known centenarians. Karp Koi, who gets into natural waters, loses color and becomes olive green.very hard 28% 10 -15 years10 -15 years16%15 - 25 years15 - 25 years33%25 - 30 years25 - 30 years21%30 - 50 years30 - 50 years28%Created by: Katarzyna Dąbrowska. Statistics based on 1170 answers in 2 languages »Japan riddles » Which sea animal captures have grown significally since 1970?American lobster. In 1990s several cod stocks collapsed due to overfishing. With the large predatory fish removed, their prey have had population explosions, and the capture of lobster tripled since 1970.very hard 36% blue whaleblue whale13%Atlantic codAtlantic cod37%flounderflounder12%American lobsterAmerican lobster36%Created by: globalquiz.org. Statistics based on 14836 answers in 4 languages »fishing riddles » Which dangerous fish breathes atmospheric air?Electric eel. Electric ell lives in muddy floodplains of Orinoco basin. It is well adapted to this low-oxygen environment: it can breathe atmospheric air using a vascularized respiratory organ in its oral cavity. In fact, electric eels must rise to the surface every 10 minutes and inhale, otherwise they die not having enough oxygen from the gill.very hard 38% barracudabarracuda24%stingraystingray15%electric eelelectric eel38%moray eelmoray eel22%Created by: globalquiz.org. Statistics based on 12113 answers in 4 languages »Venezuela riddles » Which country in the world captures the most fish?China, with one-fifth of the world's population, accounts for one-third of the world's reported fish production and two-thirds of the worlds reported aquaculture production. Chinese fishing fleet has access to numerous distant fishing grounds through agreements with foreign countries. That includes West African coast and North and South Pacific.hard 47% United StatesUnited States7%ChileChile16%ChinaChina47%JapanJapan28%Created by: globalquiz.org. Statistics based on 13166 answers in 2 languages »industry riddles » What is the top speed of the sailfish, considered to be the fastest fish in the world?Up to 70 mph. Clocked at speeds in excess of 68 mph, some experts consider the sailfish the fastest fish in the world. Easily recognized, sailfish are named for the spectacular sail-like dorsal fin that extends for nearly the entire length of their silver-blue body. Additionally, the sailfish's upper jaw is far longer than its lower jaw, forming a distinctive bill that looks like—and sometimes acts like—a spear.hard 48% up to 50 mphup to 50 mph9%up to 70 mphup to 70 mph48%up to 90 mphup to 90 mph27%well over 100 mphwell over 100 mph14%Created by: Ninjai. Statistics based on 291 answers in 2 languages »sea animals riddles » Where does electric eel occur in the wild?In South America. Electric eels inhabit muddy waters of the Amazon and Orinoco basins floodplains and swamps. Fortunately, these are remote and uninhabited areas, as electric eels can easily kill a human. Although it doesn't eat such large animals (it has no teeth and can swallow only small mammals), a series of electric shocks is enough to stun and drown a horse.hard 51% in Australiain Australia18%in South Americain South America51%in Africain Africa8%in South-East Asiain South-East Asia21%Created by: Sumit Tamang. Statistics based on 22865 answers in 2 languages »animals of South America riddles » Which fish has meat with ammonia smell?Sharks are very primitive and they lack a urinary system. Instead sharks carry urea in their blood and excrete it through their flesh by osmosis. After a shark dies, its urea turns to ammonia, which can permeate the flesh.hard 54% tunatuna14%catfishcatfish10%eeleel20%sharkshark54%Created by: Debbie Fox. Statistics based on 21226 answers in 2 languages »meat riddles » What does swordfish use their sword for?Hunting. Swordfish charge at high speeds through forage fish schools, slashing with their swords to kill or stun prey (contrary to the popular belief, they do not "spear"). They then turn and return to consume their catch.hard 56% huntinghunting56%attracting femaleattracting female14%buoyancybuoyancy14%electrical detectionelectrical detection15%Created by: globalquiz.org. Statistics based on 20705 answers in 4 languages »predators riddles » What kind of fish was it NOT?Sharks are a group of fish characterized by a cartilaginous skeleton. Large sharks can easily be crushed under their own weight on land, because sharks do not have rib cages.hard 58% catfishcatfish16%tunatuna15%swordfishswordfish10%sharkshark58%Created by: globalquiz.org. Statistics based on 15881 answers in 2 languages »bones riddles » Why is this seahorse male so thick?It is pregnant. Seahorse males deliver the babies. After mating, the fertilized eggs are embedded in the pouch wall and become surrounded by a spongy tissue. The male provides oxygen and supplies the eggs with prolactin, the same hormone responsible for milk production in pregnant mammals.easy 73% it is pregnantit is pregnant73%it has swallowed an octopusit has swallowed an octopus2%it is changing skinit is changing skin5%it holds some air insideit holds some air inside18%Created by: globalquiz.org. Statistics based on 16035 answers in 4 languages »zoology riddles » Play animals quiz and see all the questions.