Quiz2Know

Animals

Subterranean and Burrowing Animals

Uncover the anatomical secrets and survival strategies of creatures that live their lives burrowed deep underground.

This is a free, 10-question multiple-choice quiz. Answer each question to see whether you got it right, with an explanation for every answer. There is no sign-up and no time limit — take it as many times as you like, and scroll down for the full answer key once you are done.

Question 1 of 10

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What nearly hairless, cold-blooded subterranean rodent lives in eusocial colonies governed by a single breeding queen?

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Answer key & explanations

Every question in this quiz, with the correct answer marked and an explanation of why it is right. Use it to revise before or after taking the quiz above.

  1. 1.What nearly hairless, cold-blooded subterranean rodent lives in eusocial colonies governed by a single breeding queen?

    • ANaked mole-rat✓ Correct
    • BDamaraland mole-rat
    • CBlind mole-rat
    • DPocket gopher

    Correct answer: Naked mole-rat

    Naked mole-rats live in underground desert warrens in East Africa, displaying insect-like eusociality with non-breeding worker castes.

  2. 2.Which North American mole is famous for the twenty-two pink, fleshy, touch-sensitive tentacles ringing its snout?

    • AStar-nosed mole✓ Correct
    • BEastern mole
    • CBroad-footed mole
    • DCoast mole

    Correct answer: Star-nosed mole

    The star-nosed mole's nasal tentacles house tens of thousands of microscopic Eimer's organs, processing tactile prey signals in fractions of a second.

  3. 3.What structural adaptation enables common moles to move immense quantities of soil while tunneling underground?

    • APaddle-like spade forelimbs with extra bones✓ Correct
    • BFused cranial plates for ramming
    • CEnlarged lower incisors
    • DPrehensile muscular tails

    Correct answer: Paddle-like spade forelimbs with extra bones

    Moles have outward-facing, shovel-like forepaws anchored by a sickle-shaped extra bone (prepollex) to provide leverage against compacted dirt.

  4. 4.Which burrowing insect spends thirteen or seventeen years underground as a nymph feeding on root sap before emerging simultaneously?

    • APeriodical cicada✓ Correct
    • BMole cricket
    • CJune beetle larva
    • DRoot aphid

    Correct answer: Periodical cicada

    Periodical cicadas stay hidden in root systems for well over a decade before tunneling to the surface en masse to molt and breed.

  5. 5.What burrowing reptile found in tropical soil lacks limbs and eyes, often resembling a large earthworm?

    • AAmphisbaenian (Worm lizard)✓ Correct
    • BBlind snake
    • CSlow worm
    • DLegless skink

    Correct answer: Amphisbaenian (Worm lizard)

    Amphisbaenians are specialized burrowing squamates with heavy reinforced skulls and ringed body segments that allow movement backwards and forwards.

  6. 6.What small predatory mammal digs extensive labyrinthine burrows across the Kalahari Desert and takes turns standing sentry?

    • AMeerkat✓ Correct
    • BDwarf mongoose
    • CYellow mongoose
    • DGround squirrel

    Correct answer: Meerkat

    Meerkats coordinate foraging through elaborate burrow networks, assigning rotating sentinels to watch the skies for raptors.

  7. 7.Which invertebrate aerates terrestrial soil by ingesting soil particles and decomposing organic leaf litter?

    • AEarthworm✓ Correct
    • BCentipede
    • CNematode
    • DVelvet worm

    Correct answer: Earthworm

    Earthworms pass soil through their muscular gizzards, leaving nutrient-dense vermicompost casts that support healthy soil architecture.

  8. 8.What underground spider constructs a silk-hinged soil doorway over its burrow to ambush walking prey from below?

    • ATrapdoor spider✓ Correct
    • BWolf spider
    • CFunnel-web spider
    • DBaboon spider

    Correct answer: Trapdoor spider

    Trapdoor spiders camouflage their burrow lids with moss and soil, darting out when silk tripwires alert them to passing insects.

  9. 9.Which amphibian family contains limbless, burrowing, worm-shaped creatures that live almost exclusively inside damp tropical humus?

    • ACaecilians✓ Correct
    • BSirens
    • CHellbenders
    • DMudpuppies

    Correct answer: Caecilians

    Caecilians are subterranean amphibians that lack limbs and rely on sensory tentacles between their eyes and nostrils to track prey in soil.

  10. 10.What Australian marsupial with dense golden fur and a hardened nasal shield swims through sandy desert dunes underground?

    • AMarsupial mole✓ Correct
    • BGreater bilby
    • CNumbat
    • DPygmy possum

    Correct answer: Marsupial mole

    Marsupial moles have fused neck vertebrae and shovel-like claws, allowing them to literally 'swim' through subterranean sands without leaving open tunnels.

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