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