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