Nocturnal Animals Quiz

1. What does 'nocturnal' mean?

1. An animal that is active at dawn and dusk only
2. An animal that is active at night and sleeps during the day
3. An animal that lives underground
4. An animal that only drinks at night

2. How do bats navigate and find food in complete darkness?

1. They can smell food from great distances
2. They follow other bats by sight
3. They have excellent night vision
4. They use echolocation — emitting sound pulses and listening for echoes

3. Why do owls have such large eyes?

1. Large eyes let in more light, giving excellent vision in low-light conditions at night
2. To intimidate prey before striking
3. To see both near and far objects simultaneously
4. To see in colour better than any other bird

4. Which nocturnal mammal from Madagascar has enormous, forward-facing eyes and taps wood to find insects?

1. Aye-aye
2. Fossa
3. Ring-tailed lemur
4. Tenrec

5. The hedgehog is a nocturnal animal. What does it do when threatened?

1. It bites with powerful jaws
2. It plays dead convincingly
3. It rolls into a tight ball with its spines pointing outward
4. It sprays a foul-smelling liquid

6. Which nocturnal predator has rotating ears that can locate a mouse under 60 cm of snow?

1. Barn owl
2. Eagle owl
3. Great grey owl
4. Tawny owl

7. What is the tapetum lucidum and which nocturnal animals have it?

1. A reflective layer behind the retina that bounces light back through the eye, improving night vision
2. A special light-emitting organ used to attract prey
3. A special protective covering over nocturnal animals' eyes
4. A type of camouflage pattern that appears in darkness

8. The slow loris is the only venomous primate — a nocturnal animal from Southeast Asia. How does it deliver venom?

1. It licks a venom gland on its arm, then delivers it through its bite or by rubbing on its young
2. Through its saliva alone when it bites
3. Through its sharp claws
4. Through spines on its back

9. Which nocturnal African animal is sometimes called the 'earth pig' and has a pig-like snout?

1. Aardvark
2. Honey badger
3. Pangolin
4. Warthog

10. Most sharks are active at night. Which sensory organ do they use to detect electrical fields produced by prey in the dark?

1. Bioluminescent patches on their belly
2. The ampullae of Lorenzini
3. The lateral line
4. Their acute sense of smell

11. Which large nocturnal cat is the only big cat found in the Americas and loves to swim?

1. Jaguar
2. Margay
3. Ocelot
4. Puma

12. The firefly (lightning bug) uses bioluminescence at night. What is bioluminescence?

1. Absorption of sunlight during the day released at night
2. Electricity generated by the insect's wings moving
3. Reflected moonlight from special scales
4. The production of light by a living organism through a chemical reaction

13. The kiwi is a nocturnal bird from New Zealand. What unusual feature does it have compared to all other birds?

1. It can fly in complete darkness using echolocation
2. It has no feathers — only hair-like filaments
3. It lays the smallest egg relative to its body size
4. Its nostrils are at the tip of its long bill, giving it an acute sense of smell

14. Which nocturnal South American mammal is armoured with bony plates and can roll into a ball?

1. Capybara
2. Pangolin
3. Porcupine
4. Three-banded armadillo

15. What advantage does being nocturnal give to many desert animals like scorpions and gerbils?

1. Both B and C are correct
2. They avoid competition with larger daytime animals
3. They avoid the extreme daytime heat and reduce water loss by being active in cooler temperatures at night
4. They can see better than daytime animals

16. How do cats' eyes differ from human eyes to help them see in very low light?

1. Cat eyes magnify objects to appear larger
2. Cats can see in absolute darkness with no light at all
3. Cats have a larger pupil that opens very wide, more rod cells, and a reflective tapetum lucidum
4. Cats have infrared vision that detects heat

17. Which nocturnal insect navigates using the moon and stars — and why does this cause problems near artificial lights?

1. Beetles — they use the Milky Way to navigate in a straight line
2. Cockroaches — they avoid any light source
3. Fireflies — they mistake streetlights for mates
4. Moths — they navigate by keeping a fixed angle to celestial light, so artificial lights confuse this system and cause spiral flight toward bulbs

18. The tarsier, a small nocturnal primate from Southeast Asia, has which extraordinary eye feature?

1. Each eye can move independently like a chameleon
2. Each eye is larger than its brain, and they cannot move in their sockets so the tarsier must rotate its whole head
3. Its eyes can see ultraviolet light
4. Its eyes glow green in the dark

19. What do the words 'nocturnal', 'diurnal', and 'crepuscular' mean respectively?

1. Always sleeping, always moving, sometimes sleeping
2. Cold-blooded, warm-blooded, in-between
3. Night-active, day-active, dawn and dusk-active
4. Underground, above-ground, tree-dwelling

20. The African pangolin is a secretive nocturnal animal. Why is it critically endangered?

1. Climate change has destroyed its food sources
2. It is the world's most trafficked mammal — poached for its scales (used in traditional medicine) and meat
3. Its slow reproduction rate is the primary cause
4. Loss of forest habitat is the only cause