Doggy Do You Knows

Did you know all this about dogs?*

1. Scientific name: Canis lupus familiaris
2. Gestation period: 63 d on average
3. Daily sleep: 10.1 h on average
4. Height: 67 – 70 cm (At Shoulder)
5. Rank: Subspecies
6. Lifespan: 10 – 13 y, 11.08 y on average (UK population), 12.67 y on average (dying of natural causes, UK population)

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*source: Wikipedia.