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Domestication of the dog - Quiz
Contributed by: Lucas
  • 1. What type of vast steppe stretched from Spain across Eurasia and into Alaska and the Yukon during the Late Pleistocene glaciation?
A) A mammoth steppe
B) A taiga steppe
C) An alpine steppe
D) A boreal steppe
  • 2. What was the maximum regional temperature change associated with climate oscillations at the close of the Late Pleistocene era?
A) Up to 5 °C (9 °F)
B) Up to 16 °C (29 °F)
C) Up to 10 °C (18 °F)
D) Up to 25 °C (45 °F)
  • 3. Is there evidence of megafaunal extinctions at the height of the Last Glacial Maximum (26,500 YBP)?
A) Only in Eurasia
B) Only in North America
C) Yes, extensive evidence
D) No, there is no evidence
  • 4. What happened to predators that depended on species that became extinct during the Late Pleistocene?
A) They immediately domesticated themselves
B) They switched entirely to eating plants
C) They migrated to the tropics
D) They suffered coextinction
  • 5. When does the most recent common ancestor for all C. lupus specimens studied (modern and extinct, excluding Himalayan and Indian plains wolves) date to based on mitochondrial genomes?
A) 32,000 YBP
B) 26,500 YBP
C) 80,000 YBP
D) 1 million YBP
  • 6. Where were the earliest grey wolf fossil specimens found?
A) Southern Spain and the Iberian Peninsula
B) The high Arctic islands of Canada
C) Central Eurasia and the Ural Mountains
D) Eastern Beringia at Old Crow, Yukon, and Cripple Creek Sump, Fairbanks
  • 7. What is the possible maximum age of the earliest grey wolf fossil specimens according to the fossil record?
A) 25,000 YBP
B) 1 million YBP
C) 80,000 YBP
D) 32,000 YBP
  • 8. When do all modern wolves (excluding the Himalayan and Indian plains wolves) show a most recent common ancestor dating to?
A) 80,000 YBP
B) 25,000 YBP
C) 1 million YBP
D) 32,000 YBP
  • 9. What event does the common ancestor date of 32,000 YBP coincide with for modern wolves?
A) The height of the Last Glacial Maximum
B) The complete domestication of the dog
C) The commencement of their global demographic decline
D) The extinction of the dire wolf
  • 10. What may have caused changes in the morphology and body size of wolves during the Late Pleistocene?
A) Shifts in global magnetic fields
B) Differences in their prey size
C) Direct human breeding programs
D) Volcanic ash accumulation
  • 11. What resulted in larger wolves during the Pleistocene?
A) Isolation on remote islands
B) A preference for larger prey
C) A diet consisting exclusively of fish
D) Living in warmer lowland regions
  • 12. How are Pleistocene grey wolves described regarding their cranio-dental features compared to modern ones?
A) More cranio-dentally robust
B) More gracile and delicate
C) Possessing longer and narrower rostra
D) Lacking premolars entirely
  • 13. What specialized adaptations did the robust features of Pleistocene wolves serve?
A) The processing of carcass and bone associated with Pleistocene megafauna
B) Eating tough aquatic vegetation
C) Catching fast-moving avian prey
D) Digging deep underground burrows
  • 14. Which extinct wolf showed a similar increase in tooth breakage to some Pleistocene wolves?
A) The Tasmanian wolf
B) The Falkland Islands wolf
C) The Ethiopian wolf
D) The dire wolf
  • 15. What animal's tooth fractures were compared to those of Pleistocene wolves to indicate they were habitual bone crackers?
A) The saber-toothed cat
B) The brown bear
C) The modern spotted hyena
D) The African wild dog
  • 16. What does the presence of unique mitochondrial lineages in ancient wolves imply?
A) That they survived unchanged to the present day
B) That they evolved directly into modern domestic cats
C) That the ancient wolves went extinct
D) That they never interbred with other populations
  • 17. When did grey wolves suffer a species-wide population bottleneck?
A) Approximately 1 million YBP
B) Approximately 10,000 YBP
C) Approximately 25,000 YBP
D) Approximately 80,000 YBP
  • 18. During which glacial event did the grey wolf population bottleneck occur?
A) The Late Pleistocene Interglacial
B) The Holocene Thermal Maximum
C) The Last Glacial Maximum
D) The Younger Dryas
  • 19. Where did the single population of modern wolves expand out of to repopulate their former range?
A) An Iberian refuge
B) A Beringia refuge
C) A Himalayan refuge
D) An African refuge
  • 20. What did modern wolves do to the remaining Late Pleistocene wolf populations across Eurasia and North America as they expanded?
A) They replaced them
B) They drove them southward into Africa
C) They domesticated them
D) They protected them
  • 21. Did the modern source population of wolves give rise to dogs?
A) Through direct lineal descent
B) Without a doubt
C) Yes, exclusively
D) Probably not
  • 22. What did the admixture between modern wolves and dogs allow dogs to gain?
A) Coat colour genes related to immunity
B) Carnivorous digestive enzymes
C) Larger body sizes and longer tails
D) Resistance to high altitudes
  • 23. Which wolves are more directly ancestral to dogs than modern wolves are?
A) The Indian plains wolf
B) The modern dire wolf
C) The Himalayan wolf
D) One or more ancient populations existing prior to the bottleneck
  • 24. Which wolves were conceivably more prone to domestication by the first humans to expand into Eurasia?
A) Modern grey wolves from the Beringian refuge
B) Spotted hyenas
C) Apex predators of the deep forest
D) Ancient wolf populations prior to the bottleneck
  • 25. Where does an apex predator sit on the food chain?
A) On the bottom trophic level
B) On the top trophic level
C) On the mesopredator level
D) On the primary consumer level
  • 26. What depends on smaller animals and sits further down the food chain?
A) A mesopredator
B) An apex consumer
C) An apex predator
D) A primary producer
  • 27. Towards the end of the Pleistocene era, what status did most of today's apex predators hold, including the wolf?
A) Primary producers
B) Super-apex predators
C) Herbivores
D) Mesopredators
  • 28. What did one type of wolf population rise to become during the ecological upheaval at the close of the Pleistocene?
A) A pure mesopredator
B) Today's apex predator
C) A helpless herbivore
D) An extinct scavenger
  • 29. What did another wolf population join with humans to become?
A) A solitary nomad
B) A domestic livestock animal
C) A wild primate
D) An apex consumer
  • 30. What did the domestication of the wolf lineage ensure for it?
A) Its immediate extinction alongside megafauna
B) Its evolutionary success through expansion into a new ecological niche
C) Its return to a purely solitary lifestyle
D) Its permanent confinement to glaciers
  • 31. What long-standing scientific assumption regarding the origin of dogs was proven incorrect by a 2014 study?
A) That dogs evolved from the dire wolf
B) That dogs were never related to canids
C) That dogs evolved from the spotted hyena
D) That dogs evolved from the modern grey wolf
  • 32. According to the 2014 study, what are dogs actually descended from?
A) The modern grey wolf
B) An extinct type of wolf
C) The Himalayan wolf exclusively
D) An ancient species of wildcat
  • 33. What feature of Pleistocene wolves involved the temporalis muscle?
A) Absence from the skull
B) Complete atrophy
C) Reduction in size
D) Pronounced development
  • 34. What feature characterized the rostrum of Pleistocene wolves compared to modern wolves?
A) A missing rostrum
B) A shortened rostrum
C) A brightly colored rostrum
D) An elongated rostrum
  • 35. What type of premolars did Pleistocene wolves have?
A) Robust premolars
B) Reduced premolars
C) Brittle premolars
D) Flat herbivorous premolars
  • 36. What did the frequency and location of tooth fractures in Pleistocene wolves suggest about their behavior?
A) They only ate soft fruit and berries
B) They refused to eat bones
C) They exclusively hunted fish
D) They were habitual bone crackers
  • 37. What historical view did scientists hold regarding the grey wolf known today?
A) That it only appeared after the Holocene
B) That it originated in South America
C) That it was around for hundreds of thousands of years
D) That it descended directly from domestic dogs
  • 38. How did scientists react upon learning that dogs did not derive from the modern grey wolf?
A) They dismissed the finding as false
B) They already predicted it in 1900
C) They were completely unsurprised
D) They were very surprised
  • 39. Which specific wolf populations are excluded from the general mitochondrial genome grouping of modern and extinct grey wolves in the text?
A) The dire wolf and the timber wolf
B) The Arctic wolf and the Mexican wolf
C) The Yukon wolf and the Eurasian wolf
D) The Himalayan wolf and the Indian plains wolf
  • 40. What phenomenon occurred towards the end of the Pleistocene era alongside a global population decline in grey wolves?
A) The sudden appearance of modern humans in America
B) The domestication of the horse
C) Extinctions of ecomorphs and phylogeographic shifts
D) Massive expansion of tropical rainforests
  • 41. What scientific name was given to the domestic dog as a result of its emergence as a species?
A) Canis lupus
B) Canis aureus
C) Canis familiaris
D) Canis latrans
  • 42. The similarity between the dog and the grey wolf is the result of what process?
A) Artificial selective breeding
B) Parallel evolution in the wild
C) Substantial dog-into-wolf gene flow
D) Recent cross-breeding in captivity
  • 43. What was the first species and the only large carnivore to have been domesticated?
A) The pig
B) The wolf
C) The dog
D) The cat
  • 44. What type of selection is the domestication of the dog considered to be a prominent example of?
A) Natural selection
B) Social selection
C) Sexual selection
D) Artificial selection
  • 45. What was considered the first undisputed dog based on archaeological and genetic analysis?
A) The Bonn–Oberkassel dog
B) The Erralla dog
C) The Palegawra dog
D) The Ain Mallaha dog
  • 46. According to literature reviews, where was the dog most plausibly domesticated?
A) Australia
B) Sub-Saharan Africa
C) Eurasia
D) North America
  • 47. What is the oldest known human-dog coburial mentioned in the text?
A) Palegawra dog
B) Erralla dog
C) Ain Mallaha dog
D) Bonn–Oberkassel dog
  • 48. How old is the Bonn–Oberkassel dog coburial?
A) 7,000 cal BP
B) 14,500 cal BP
C) 11,400 cal BP
D) 17,500 cal BP
  • 49. Which glacial refuge did the Magdalenian culture expand from after the Last Glacial Maximum?
A) Balkan region
B) Franco-Cantabrian region
C) Carpathian region
D) Italian peninsula
  • 50. What culture did the Palegawra dog belong to?
A) Magdalenian culture
B) Zarzian culture
C) Azilian culture
D) Natufian culture
  • 51. Name one of the locations where Natufian dogs were found before agriculture.
A) Abri le Morin
B) Erralla site
C) Ain Mallaha
D) Kesslerloch
  • 52. Where were the Cyprus small dogs discovered?
A) Palegawra
B) Kebara Cave
C) Hayonim Cave
D) Shillourokambos
  • 53. How many ancestral lineages had diversified from each other by the close of the most recent Ice Age?
A) Ten
B) Three
C) Two
D) Five
  • 54. According to ancient dog samples, where was one of the five ancestral lineages found at 7,000 years before present?
A) Western Europe
B) Siberia
C) The Levant
D) Cyprus
  • 55. In which region was an ancient dog sample dated to 10,900 YBP found?
A) The Levant
B) Karelia
C) Lake Baikal
D) Ancient America
  • 56. An ancient dog sample dated to 7,000 YBP was found near which body of water?
A) Lake Baikal
B) Lake Superior
C) The Black Sea
D) The Caspian Sea
  • 57. A 2021 literature review implies that dog domestication began in which region between 26,000 and 19,700 years ago?
A) East Asia
B) The Near East
C) Western Europe
D) Siberia
  • 58. What type of analysis is used in attempts to reconstruct the dog's lineage through DNA sequences?
A) Phylogenetic analysis
B) Cytological analysis
C) Morphological analysis
D) Histological analysis
  • 59. What term is used to describe the difficulty in dating the divergence due to a short split period?
A) Post-domestication gene flow
B) Incomplete lineage sorting
C) Phylogenetic drift
D) Mutation sparsity
  • 60. In what year was the first draft genome sequence of a Pleistocene wolf published?
A) 2014
B) 2017
C) 2013
D) 2015
  • 61. Where was the Pleistocene wolf whose genome was published in 2015 found?
A) Eurasian steppes
B) Last Glacial Maximum refuge
C) Taymyr Peninsula
D) Przewalski region
  • 62. What did the 2017 study compare from three ancient dog specimens?
A) Whole genome sequencing of horses
B) Pleistocene bone structure
C) Nuclear genome
D) Mitochondrial DNA
  • 63. What kind of fossils were found dated over 30,000 YBP, supporting the 2020 study?
A) Modern wolf ancestors
B) Dog-like fossils
C) Horse fossils
D) Pleistocene human remains
  • 64. What environmental factor is mentioned as causing divergence changes?
A) Domestication pens
B) Human agriculture
C) Dietary shifts
D) Climate
  • 65. Which region's modern dogs showed greater genetic diversity than those from other regions in certain studies, suggesting a place of origin?
A) Western Europe
B) Central Asia
C) North America
D) Southeast Asia
  • 66. What factor strongly reduces genetic diversity and was associated with the formation of dog breeds?
A) Incomplete lineage sorting
B) Natural hybridization
C) Genetic bottlenecks
D) Introgression
  • 67. Which region was concluded by one DNA study to be the origin of dogs because local dogs exhibited the lowest levels of linkage disequilibrium?
A) Central Asia
B) The Middle East
C) Western Europe
D) Southern Siberia
  • 68. What does the Latin term 'cf.' mean in the context of the Canis cf. variabilis specimen?
A) Extinct
B) Common
C) Complete
D) Uncertain
  • 69. How many monophyletic clades do modern dog mDNA haplotypes resolve into?
A) Three
B) Four
C) Five
D) Two
  • 70. What percentage of the modern dogs sampled were included in Clade A?
A) 78%
B) 12%
C) 64%
D) 22%
  • 71. Which cave in Switzerland yielded a 14,500 YBP wolf found to be a sister group to Clade A and pre-Columbian fossil dogs?
A) Kesslerloch cave
B) Erralla cave
C) Grotta Romanelli
D) Razboinichya Cave
  • 72. What percentage of the dog sequences were included in Clade B?
A) 22%
B) 64%
C) 50%
D) 12%
  • 73. During which cold events might domestication have happened after the arrival of humans in West Europe?
A) Little Ice Age events
B) Dansgaard-Oeschger events
C) Heinrich events
D) Bond events
  • 74. When did modern European breeds emerge according to historical context?
A) 12th century
B) 15th century
C) 19th century
D) Ancient Roman times
  • 75. Where was the Cava Filo archaeological site located where wolf samples fell within the domestic dog clade A haplogroup?
A) Near San Lazzaro di Savena, Bologna, northern Italy
B) Near Mechernich, Germany
C) In the Altai Mountains, southern Siberia
D) In Apulia, southern Italy
  • 76. In what year were dog remains found in Paglicci Cave and Grotta Romanelli in Apulia, southern Italy?
A) 2018
B) 2020
C) 2015
D) 2013
  • 77. What might early selection have favored if early dogs scavenged on human carcasses?
A) Floppy ears
B) A wolf-like morphology
C) A completely flat face
D) A miniature body size
  • 78. Which bone of the Erralla dog showed a reduction in size compared to wolf humeri?
A) Femur
B) Skull
C) Humerus
D) Jaw
  • 79. What did a 2025 morphometric study analyze?
A) 50 canid genomes
B) 643 canid skulls
C) 100 canid skeletons
D) 1,000 canid teeth
  • 80. Which gene is affected by the gene variant that spread to all wolves and dogs today?
A) WOLF1
B) DNA100
C) IFT88
D) SKULL50
  • 81. Who is the senior author of the study that tracked natural selection in wolves?
A) Richard Leakey
B) Charles Darwin
C) Pontus Skoglund
D) Gregor Mendel
  • 82. What type of process is animal domestication described as?
A) Coevolutionary process
B) A rapid mutation event
C) Artificial selection only
D) Linear biological evolution
  • 83. How many population bottlenecks have occurred to the dog lineage according to the text?
A) Two
B) Four
C) One
D) Three
  • 84. Which term was developed by anthropologists with a human-centric view?
A) Domestication
B) Socialization
C) Coevolution
D) Bottleneck
  • 85. What wild animals does the text mention anthropologists typically focused on when defining traditional domestication?
A) Carnivores
B) Ungulates
C) Rodents
D) Primates
  • 86. What was the name of the gentle black wolf that formed relationships with people and dogs in Juneau, Alaska?
A) Balto
B) Romeo
C) White Fang
D) Lobo
  • 87. According to the alternate view, what had to happen before there could be domestication of the wolf?
A) Phenotype divergence
B) A population bottleneck
C) Agricultural development
D) Socialization
  • 88. What pathway did the dog likely take into domestication?
A) Agricultural pathway
B) Directed pathway
C) Prey pathway
D) Commensal pathway
  • 89. Why might it have been inevitable that the first domesticated animal came from the order of carnivores?
A) Carnivores rely entirely on plant-based diets
B) Carnivores are easier to breed in captivity
C) Carnivores have the most docile temperaments
D) Carnivores are less afraid when approaching other species
  • 90. Which family within the carnivores did the first domesticated animal belong to?
A) Mustelidae
B) Felidae
C) Ursidae
D) Canidae
  • 91. Which wolves were most likely drawn to human camps?
A) Extremely aggressive lone wolves
B) Alpha wolves seeking total control
C) Less-aggressive, subdominant pack members
D) Sick and injured older wolves
  • 92. What process started when less-aggressive wolves were drawn to human camps?
A) Artificial selection
B) Self-domestication
C) Genetic engineering
D) Forced adaptation
  • 93. Which animals did some wolves follow on the mammoth steppe?
A) Great reindeer herds
B) Woolly mammoths
C) Saber-toothed cats
D) Wild horses
  • 94. What order of mammals do humans belong to, making them unusual members of the large carnivore guild?
A) Ungulates
B) Rodentia
C) Carnivora
D) Primates
  • 95. What maximum percentage of their energy requirements can humans derive from protein?
A) 50%
B) 20%
C) 10%
D) 80%
  • 96. What can high protein consumption lead to in humans?
A) Illness
B) Superhuman strength
C) Better night vision
D) Infertility
  • 97. What food was not available during the harsh winters of the Last Glacial Maximum?
A) Game meat
B) Fish
C) Plant foods
D) Fat
  • 98. What do limb bones contain that was processed during the Last Glacial Maximum?
A) Marrow with high carbohydrate content
B) Fatty oils
C) Dry calcium
D) Poisonous toxins
  • 99. How long can typical carnivores like wolves survive on a protein-based diet?
A) Months
B) Years without any limit
C) A couple of hours
D) Only a few days
  • 100. What is the most common coat pattern found in modern wolves?
A) Spotted calico
B) Pure white
C) Solid black
D) Agouti
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