The term "K9" is a play on which word?
Answercanine
K-9 sounds like "canine," meaning relating to dogs.
Animals · Facts & stats
K9 facts & stats
7 fact-checked facts about working dogs, police K9 units and dog training, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Which sense do detection dogs rely on most?
AnswerSmell
A dog's nose is far more sensitive than a human's, which is why dogs detect scents so well.
Going deeper
How many teeth does a typical adult dog have?
Answer42
Adult dogs usually have 42 permanent teeth, compared with 32 in adult humans.
Roughly how many scent receptors does a dog's nose have?
AnswerUp to about 300 million
Dogs have up to around 300 million olfactory receptors versus roughly 6 million in humans.
What is the extra scent organ in a dog's nasal cavity called?
AnswerVomeronasal (Jacobson's) organ
The vomeronasal organ helps dogs detect chemical signals such as pheromones.
Expert level
How does dog hearing compare with human hearing?
AnswerDogs hear higher-pitched sounds humans cannot
Dogs can hear frequencies well above the roughly 20,000 Hz human limit.
About how long is a dog's pregnancy?
AnswerAbout 63 days
Canine gestation averages around 63 days, roughly nine weeks.
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