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Quiz about You Can Dream
Quiz about You Can Dream

You Can Dream Trivia Quiz


The quiz takes a look at various animals with interesting sleep habits. See if you can match the animal to the habit.

A matching quiz by suomy. Estimated time: 4 mins.
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Author
suomy
Time
4 mins
Type
Match Quiz
Quiz #
388,841
Updated
Dec 03 21
# Qns
10
Difficulty
Average
Avg Score
6 / 10
Plays
388
(a) Drag-and-drop from the right to the left, or (b) click on a right side answer box and then on a left side box to move it.
QuestionsChoices
1. Has been known to sleep for years at a time   
  Wood frog
2. Switches off half its brain while "logging"   
  Giraffe
3. Sometimes makes do with 30 minutes sleep per day on average   
  Sea otter
4. Sometimes holds hands whilst asleep   
  Egyptian desert snail
5. Believed to sleep on the wing   
  Dolphin
6. Sleeps in a row with the end ones keeping an eye open   
  Meerkat
7. Sleeps in a heap  
  Frigatebird
8. Mammal which sleeps the most on average per day   
  Koala
9. Has an antifreeze-like blood  
  Duck
10. Gets by with an average of 250 power naps per day   
  Fire ant





Select each answer

1. Has been known to sleep for years at a time
2. Switches off half its brain while "logging"
3. Sometimes makes do with 30 minutes sleep per day on average
4. Sometimes holds hands whilst asleep
5. Believed to sleep on the wing
6. Sleeps in a row with the end ones keeping an eye open
7. Sleeps in a heap
8. Mammal which sleeps the most on average per day
9. Has an antifreeze-like blood
10. Gets by with an average of 250 power naps per day

Most Recent Scores
Mar 25 2024 : Guest 68: 6/10
Feb 11 2024 : kyleisalive: 3/10

Score Distribution

quiz
Quiz Answer Key and Fun Facts
1. Has been known to sleep for years at a time

Answer: Egyptian desert snail

The snail (Sphincterochila boissieri) is typically active for less than a month each year, going into aestivation (a kind of dormancy) to survive the heat of the desert.

One snail, complete with an identification label, used to form part of a collection at the British Museum. It woke up four years later leaving an empty space and a slime trail, much to the bemusement of the museum staff.
2. Switches off half its brain while "logging"

Answer: Dolphin

Because its breathing is not automatic, a dolphin needs to be conscious in order to breathe. To give its brain a chance to recuperate, it performs unihemispheric sleep with each half of the brain taking a turn to go sleep. The other half keeps the breathing going and looks out for danger using the opposite eye (right eye with left brain hemisphere, and vice-versa).

"Logging" is the term typically applied to dolphins and other cetaceans drifting asleep on or near the surface.
3. Sometimes makes do with 30 minutes sleep per day on average

Answer: Giraffe

Rarely resting for more than five minutes at a time and often sleeping whilst standing, the giraffe is reportedly the shortest-sleeping creature in the animal world. Why? To reduce their vulnerability to predators. Getting up from sleeping on the ground is also a time-consuming exercise, adding risk, so standing sleeps are preferred.
4. Sometimes holds hands whilst asleep

Answer: Sea otter

Sea otters are known for sleeping at sea, although some do come ashore to sleep. Perhaps to prevent themselves drifting away, they will often sleep on their backs in groups, sometimes holding hands, and sometimes enmeshed in sea kelp to anchor them.
5. Believed to sleep on the wing

Answer: Frigatebird

This long-distance traveller can be away from land for up to ten days in the case of the great frigatebird species. Sleeping on the sea is not really an option as its feathers are water-permeable. It is believed to use the unihemispheric sleep technique. Birds tagged with altimeters have confirmed that they remain airborne throughout such flights.

It solves the feeding on the wing problem by catching flying fish, harassing other birds until they drop their catch or eating fish leaping into the air to escape the attentions of tuna or dolphin.
6. Sleeps in a row with the end ones keeping an eye open

Answer: Duck

Perhaps the source of the expression "have your ducks in a row", meaning to organise things well, ducks will often line up in a row when going to sleep. Practising unihemisphere sleeping, the end ones keep the eye facing away from the group open to watch out for danger.
7. Sleeps in a heap

Answer: Meerkat

Meerkats typically pile in a heap to sleep for warmth. Living underground in burrows helps the meerkats to regulate their temperature. There are numerous sleeping chambers in a burrow, although only one will usually be used at any one time. They will move to another chamber when the build up of contaminants is too great.
8. Mammal which sleeps the most on average per day

Answer: Koala

The koala is said to sleep for up to 20 hours per day. The little brown bat of North America closely rivals the koala. Why does the koala sleep so much? This is attributed to the poor nutritional and calorific content of its normal diet of eucalypt leaves.
9. Has an antifreeze-like blood

Answer: Wood frog

During hibernation, the North American wood frog (Lithobates sylvaticus or Rana sylvatica) can go through a number of freeze-thaw cycles with no ill-effect. When it start to freeze, urea and glucose in the frog limit the amount of ice that forms and reduces the osmotic shrinkage of cells. The heart also stops. When it defrosts, the heart starts up again and the frog revives.
10. Gets by with an average of 250 power naps per day

Answer: Fire ant

Fire ant workers manage just under five hours of sleep in chunks of just over a minute per sleep on average. This means that 80% of the colony is active at any one time. The queen ant has a more leisurely day, managing an average of nine hours per day in 90 sleeps of six minutes.
Source: Author suomy

This quiz was reviewed by FunTrivia editor rossian before going online.
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