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50 free Whales trivia questions with answers — nature quiz, new questions added Aug 2026.
11 free whales trivia questions with answers. Dive into the deep blue with our comprehensive whale trivia quiz! Test your knowledge of the ocean's most majestic creatures, from their migration patterns to their incredible communication abilities. Whether you're a marine biology enthusiast or simply curious about whales, this 50-question challenge will help you learn amazing facts about these magnificent giants.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which whale species is considered the largest animal on Earth?
Blue Whale
The blue whale is the largest animal known to have ever existed, with a maximum confirmed length of about 30 metres (100 feet) and a weight of up to 190-200 tonnes. A few sauropods and ancient marine reptiles may have rivalled it, but those estimates rest on fragmentary remains.
Q 02What is the primary food source for blue whales?
Krill
They capture it by lunge feeding, charging into a swarm with their mouths open as wide as 80 degrees.
Q 03What is the most common collective noun for a group of whales?
Pod
A pod usually holds ten to fifty animals, but when food is abundant or during mating season, groups can swell past a thousand.
Q 04Through which specialized opening on top of their heads do whales breathe?
Blowhole
Whales, being mammals, breathe air using lungs, and do so through one or two blowholes located on the top of their heads, allowing them to surface quickly for air.
Q 05Whales rely mainly on what to communicate, find their way and hunt across the ocean?
Sound
Sound carries long distances underwater, and whales use clicks for echolocation, whistles, pulsed calls and complex songs to communicate, navigate and hunt.
Q 06How old was the oldest recorded living humpback whale?
95 years
Humpbacks routinely live past 50, and researchers estimate age from the ear-wax plugs that build up in annual layers, much like tree rings.
Q 07What is the primary food source for sperm whales?
Squid and other cephalopods
Sperm whales dive 300 to 800 metres and sometimes over a kilometre in search of prey, and undigested squid beaks pile up in their stomachs, with as many as 18,000 found in one specimen.
Q 08Which whale species is recognized as the largest toothed whale?
Sperm Whale
The sperm whale is the largest of all toothed whales, notable for its massive head and deep-diving capabilities.
Q 09What is the typical gestation period for a blue whale?
10-12 months
Calves are already 6 to 7 metres long and weigh 2 to 3 tonnes at birth.
Q 10Which whale species has the longest lifespan of any mammal, potentially over 200 years?
Bowhead Whale
Bowhead whales are considered the longest-living mammals, surviving well past 200 years; one male was estimated at 211 years old. A bowhead found in 2007 carried a harpoon point dating from the 1880s.
Q 11After the blue whale, which species is considered the second-largest whale in the world?
Fin Whale
The fin whale is the second-longest cetacean after the blue whale. The largest individuals reported measured 26-27.3 metres (85-90 feet), with a record length of 27.3 m - immense, but still short of the blue whale.
Q 12Which land animal is the closest living relative of whales and dolphins?
The hippopotamus
They share a semi-aquatic ancestor from about 54 million years ago; whales descend from even-toed ungulates.
Q 13The stranded blue whale heart weighed for the record books tipped the scales at roughly how much?
180 kg
Q 21Why were right whales the 'right' whales for early whalers to hunt?
They floated when killed
Their high blubber content also gave rich oil yields; today ship strikes and gear entanglement cause nearly half their deaths.
Q 22Roughly how many living cetacean species are there?
About 90
They split into 75 toothed species and the baleen whales; only the toothed group can echolocate.
Q 23The earliest documented organised whaling industry, from 1026, belonged to which people?
The Basques
They dominated the trade for five centuries and ranged across the North Atlantic.
Its heart rate can fall to 2 beats per minute on deep dives and climb to about 37 on surfacing.
Q 14The humpback's genus name Megaptera means what in Greek, referring to its huge front flippers?
Giant wing
Males sing complex songs lasting 4 to 33 minutes and the species uses bubbles to corral prey.
Q 15How does a sperm whale's brain, the largest of any animal, compare with a human's?
More than five times heavier
Mature males' brains average 7.8 kg; the whale can dive to 2,250 metres, third deepest of any mammal.
Q 16The orca, or killer whale, is actually the largest member of which family?
The oceanic dolphins
The oceanic dolphins count the orca as their biggest member; it is the only living species in the genus Orcinus and one of 35 in a family that appeared about 11 million years ago.
Q 17The beluga is nicknamed the 'sea canary' because of what?
Its high-pitched calls
It has no dorsal fin, which lets it swim easily beneath Arctic ice, and a large deformable melon for echolocation.
Q 18The narwhal's spiralled tusk, up to 3 metres long, is actually what kind of tooth?
A left canine
Its scientific name Monodon monoceros means 'single-tooth single-horn'; it shares the family Monodontidae only with the beluga.
Q 19The bowhead whale is named after its massive triangular skull, which it uses to do what?
Break through Arctic ice
It is the only baleen whale endemic to Arctic waters and has the longest baleen plates of any whale, up to 5.2 metres.
Q 20The rough white patches of keratinised skin on a right whale's head are called what?
Callosities
They are present before birth and host colonies of whale lice; fewer than 400 North Atlantic right whales survive.
Q 24The International Whaling Commission's moratorium on commercial whaling took effect in which year?
1986
Agreed in 1982 as a five-year pause, it still stands; Iceland, Japan and Norway continue commercial hunts.
Q 25Which country left the International Whaling Commission and resumed commercial whaling in July 2019?
Japan
It argued the IWC had failed its duty to promote sustainable hunting; it stopped its Antarctic 'scientific' whaling at the same time.
Q 26Melville's white whale was modelled on which real, notoriously elusive albino sperm whale?
Mocha Dick
The novel's ending drew on the sinking of the whaleship Essex in 1820; it was first published as The Whale in London in 1851.
Q 27According to author Christopher Kemp, roughly what share of sperm whales produce ambergris?
About one percent
Giant squid beaks found inside lumps suggest it eases the passage of sharp objects; it can float for years before washing ashore.
Q 28The spermaceti organ in a sperm whale's head can hold up to how much of the waxy substance?
1,900 litres
Whalers extracted it for candles and cosmetics from the 17th century; its function may involve buoyancy or focusing echolocation.
Q 29Which researchers released the 1970 album Songs of the Humpback Whale?
Roger and Katy Payne
Judy Collins and George Crumb soon wove the recordings into their own music.
Q 30A cetacean carcass that sinks to the deep sea floor and feeds an ecosystem for decades is called what?
A whale fall
They were first observed in the late 1970s using deep-sea robots and are hotspots for specialised bone-eating fauna.