As a pet owner, you already probably know everything there is to know about your companion animals. But here are some facts you would like to know.

1.A dog’s nose works up to 100,000 times better than ours

It’s well-known that dogs can sniff out from drugs to missing persons, noting how powerful it is. A dog’s nasal receptors are between 10,000 and 100,000 times stronger than a humans.

Not all noses are created equal. Some dog breeds are more attuned than the others, just like that of a bloodhound which is more than that of a pug.

2. Dogs have three eyelids

Between a dog’s two visible eyelids lies another pink membrane that added an extra layer of protection from dryness and dust.

But if you are able to see the said membrane, which is technically termed as a “nictitating membrane,” it marks ill health and should result in an immediate trip to the vet.

3. A single rescue dog saved 40 people back in the 1800s

A St. Bernard dog is being hailed in the Swiss Alps.

Nicknamed “der Menschenretter” (“the people rescuer”), Barry was an active sniffer dog during the 1810s and saved approximately 40 people from his home on the lower Alpine slopes.

After 12 years of service, Barry retired and was preserved by a taxidermist after his death. He is on display at the Natural History Museum of Bern and has his own monument in the Cimetiere des Chiens (cemetery of dogs) in Paris.

4. Dogs are as clever as toddlers

According to a research from 2009, a typical dog has a lexicon of more than 150 words, which is the same number as a two-year-old child. Border Collies are top of the smart charts, followed by Poodles and German Shepherds.

Dogs in the top 20 percent of canine intelligence can learn up to 250 words.

5. Dogs are genuinely selfless

A 2015 study found dogs as one of the “prosocial” animals, which means they show such willingness to help others even though there are no benefits for them.

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