Grey Mouse Lemur
  • 1. What is the scientific name of the Grey Mouse Lemur?
A) Cheirogaleus medius
B) Lemur catta
C) Microcebus murinus
D) Varecia variegata
  • 2. Where is the Grey Mouse Lemur primarily found?
A) Indonesia
B) Australia
C) Madagascar
D) Brazil
  • 3. Which of the following best describes the Grey Mouse Lemur's activity pattern?
A) Crepuscular
B) Matutinal
C) Diurnal
D) Nocturnal
  • 4. Grey Mouse Lemurs belong to which family of primates?
A) Lepilemuridae
B) Indriidae
C) Cheirogaleidae
D) Lemuridae
  • 5. Grey Mouse Lemurs are known for their:
A) Thick fur
B) Long tail
C) Large eyes
D) Sharp claws
  • 6. Which type of locomotion do Grey Mouse Lemurs primarily use on the ground?
A) Quadrupedalism
B) Climbing
C) Jumping
D) Bipedalism
  • 7. Grey Mouse Lemurs have a keen sense of:
A) Sight
B) Smell
C) Taste
D) Hearing
  • 8. During the dry season, Grey Mouse Lemurs can enter a state of:
A) Playfulness
B) Meditation
C) Aggression
D) Torpor
  • 9. How do Grey Mouse Lemurs communicate with each other?
A) Visual signals and dances
B) Vocalizations and scent marking
C) Use of sign language
D) Telepathy
  • 10. What is the main threat to Grey Mouse Lemurs today?
A) Habitat loss
B) Poaching
C) Predation
D) Climate change
  • 11. What is the weight range of the gray mouse lemur?
A) 30 to 40 grams
B) 75 to 90 grams
C) 100 to 150 grams
D) 58 to 67 grams (2.0 to 2.4 oz)
  • 12. What type of primate is the gray mouse lemur?
A) Haplorhine primate
B) Prosimian primate
C) Strepsirrhine primate
D) New World monkey
  • 13. What is the gray mouse lemur's local name in Tôlanaro (Fort Dauphin)?
A) Titilivaha
B) Tsidy
C) Koitsiky
D) Pondiky
  • 14. What is the meaning of the species name 'murinus'?
A) 'Mouse-like'
B) 'Small monkey'
C) 'Gray fur'
D) 'Nocturnal creature'
  • 15. What is the predation rate for gray mouse lemurs in the wild?
A) One out of ten individuals taken by a predator each year
B) No predation occurs
C) One out of four individuals taken by a predator each year
D) One out of two individuals taken by a predator each year
  • 16. What is the gray mouse lemur's reproductive rate?
A) High, with typically two young born per gestation
B) Moderate, with three young born per gestation
C) Non-existent in the wild
D) Low, with one young born per gestation
  • 17. What is the reproductive lifespan of the gray mouse lemur?
A) Ten years
B) Two years
C) One year
D) Five years
  • 18. How long can captive gray mouse lemurs live?
A) Up to 20 years
B) Up to 15 years
C) Up to 10 years
D) Up to 5 years
  • 19. What is a significant threat to the gray mouse lemur due to climate change?
A) Extended food shortages
B) Migration to new habitats
C) Loss of nocturnal behavior
D) Increased predation
  • 20. What is the gestation period of the gray mouse lemur?
A) 30 days
B) Approximately 60 days
C) 90 days
D) 120 days
  • 21. To which suborder do gray mouse lemurs belong?
A) Prosimii
B) Tarsiiformes
C) Haplorhini
D) Strepsirrhini
  • 22. Which infraorder includes the gray mouse lemur?
A) Cebidae
B) Lorisiformes
C) Platyrrhini
D) Lemuriformes
  • 23. What is the closest relative to the gray mouse lemur according to phylogenetic analyses?
A) Ring-tailed lemur
B) Brown mouse lemur (M. rufus)
C) Coquerel's sifaka
D) Reddish-gray mouse lemur (M. griseorufus)
  • 24. Who coined the binomial name Lemur murinus for the gray mouse lemur?
A) John Frederick Miller
B) Charles Darwin
C) Louis Leakey
D) Étienne Geoffroy Saint-Hilaire
  • 25. In which year was the gray mouse lemur moved to the genus Microcebus?
A) 1777
B) 1972
C) 1834
D) 1931
  • 26. Which species was distinguished as a distinct, sympatric species in 1972?
A) Gray mouse lemur
B) Coquerel's sifaka
C) Reddish-gray mouse lemur
D) Brown mouse lemur (M. rufus)
  • 27. How many cryptic species are now recognized within the genus Microcebus?
A) 10
B) At least 17
C) 5
D) 25
  • 28. What type of vision enhancement does the gray mouse lemur have?
A) Binocular vision
B) A tapetum lucidum
C) Infrared vision
D) Color vision
  • 29. How does the tail of the gray mouse lemur change during the wet season?
A) It loses all its fur.
B) It changes color to blend with its surroundings.
C) It becomes shorter and thinner.
D) It can increase fourfold in volume when storing fat.
  • 30. How many chromosomes does the gray mouse lemur have?
A) 66 chromosomes
B) 44 chromosomes
C) 78 chromosomes
D) 52 chromosomes
  • 31. What is unique about the chromosome structure of the gray mouse lemur, except for one type?
A) All have equal arms.
B) All have a long arm only.
C) All are acrocentric.
D) All are metacentric.
  • 32. What is the genome size of the gray mouse lemur?
A) 1.8 picograms
B) 4.2 picograms
C) 3.12 picograms
D) 5.6 picograms
  • 33. What is the color of the furred portions of the hands and feet of the gray mouse lemur?
A) Bright red
B) Off-white
C) Dark brown
D) Black
  • 34. What is the color of the patch above the nose and between the eyes on the gray mouse lemur?
A) Black
B) Pale white
C) Dark brown
D) Bright yellow
  • 35. Which part of the gray mouse lemur's body has a dorsal stripe, though not always distinct?
A) The back
B) The belly
C) The tail
D) The legs
  • 36. What seasonal dietary preference do gray mouse lemurs show?
A) No change in diet throughout the year.
B) Reduced food intake during the wet season.
C) Greater protein intake during their more active season.
D) Increased carbohydrate intake during hibernation.
  • 37. What type of forest does the gray mouse lemur inhabit?
A) Lowland tropical dry forest
B) Desert
C) Temperate rainforest
D) Tundra
  • 38. In which type of forest is the gray mouse lemur more common?
A) Primary forest
B) Temperate deciduous forest
C) Tropical rainforest
D) Secondary forest
  • 39. What percentage of its diet do insects compose for gray mouse lemurs during the end of the dry season?
A) None
B) Less than 10%
C) A larger percentage
D) Only during the wet season
  • 40. Where is the gray mouse lemur believed to range from in the south?
A) Tôlanaro
B) Ankarafantsika National Park
C) Onilahy River or Lake Tsimanampetsotsa
D) Mandena Conservation Zone
  • 41. What is a potential role of the gray mouse lemur in its ecosystem?
A) Predator of large mammals
B) Pollinator for local plant species
C) Scavenger
D) Herbivore
  • 42. What unusual behavior has been observed in male gray mouse lemurs?
A) Migrating long distances
B) Cannibalizing an adult female
C) Living solitary lives
D) Building nests on the ground
  • 43. What is the primary method of defense for gray mouse lemurs against predators?
A) Camouflage
B) Avoidance strategies
C) Physical confrontation
D) Building fortified nests
  • 44. What is the predation rate of gray mouse lemurs in Beza Mahafaly Reserve?
A) 5%
B) 50%
C) 10%
D) Around 25%
  • 45. Which mammalian predator enlarges tree hole openings to catch gray mouse lemurs?
A) Madagascar cat
B) Malagasy civet
C) Ring-tailed mongoose
D) Aye-aye
  • 46. How do gray mouse lemurs typically avoid predators during the day?
A) Hiding under rocks
B) Climbing to the highest branches
C) Sheltering inside tree holes
D) Burrowing underground
  • 47. What is a common nesting material for gray mouse lemurs?
A) Mud
B) Feathers
C) Dead leaves
D) Grass
  • 48. What sensory cue do gray mouse lemurs primarily use for prey detection?
A) Vision
B) Smell
C) Touch
D) Hearing
  • 49. Which insects are the primary insect prey of gray mouse lemurs at Marosalaza and Mandena?
A) Termites
B) Beetles
C) Ants
D) Grasshoppers
  • 50. How do gray mouse lemurs move when on the ground?
A) Crawl on all fours
B) Walk upright
C) Hop like a frog
D) Slide on their bellies
  • 51. What do gray mouse lemurs use their tails for when leaping?
A) Signaling to other lemurs
B) Balancing organ
C) Grasping branches
D) Swatting insects
  • 52. What is a characteristic of gray mouse lemurs' diet compared to other species?
A) Limited to fruits only
B) Specializes in one type of insect
C) Primarily carnivorous
D) Very broad feeding niche
  • 53. During which months do gray mouse lemurs select tree holes closer to ground level?
A) November through February.
B) June through October.
C) April through September.
D) May through August.
  • 54. Which gender tends to share nests with other females and their offspring?
A) Females
B) Neither, they sleep alone
C) Both males and females equally
D) Males
  • 55. What is a significant factor in female mate selection for gray mouse lemurs?
A) Selecting only dominant males
B) Ensuring larger body size of offspring
C) Increasing genetic diversity among offspring
D) Reducing the number of mates
  • 56. In what year was the gray mouse lemur listed in Appendix 1 by CITES?
A) 1975
B) 2008
C) 1989
D) 1968
  • 57. What percentage of gray mouse lemurs housed in 1989 were captive born?
A) 25%
B) 97%
C) 50%
D) 75%
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