12 amazing facts about dogs’ senses
A dog’s nose is up to 100,000 times more sensitive. Discover canine senses.
Dogs have hundreds of millions of scent receptors, sniff in and out separately, can detect some diseases, hear up to ~45–65 kHz, see mainly blue and yellow, have unique nose prints, sweat through paws, understand words and tone and likely dream.
Related breeds

Sarabi Mastiff
Iran’s native livestock guardian from Sarab, prized for its size and courage against wolves.

Siberian Husky
A striking sled dog with boundless energy; social but independent and a known escape artist.

Golden Retriever
A gentle, people-loving family dog that excels as a guide and therapy dog.

German Shepherd
One of the most intelligent and versatile breeds, used by police and rescue teams worldwide and devoted to its family.
Related articles
12 surprising facts about pet birds
Parrots see UV colours, greys grasp zero and canaries relearn songs.
Iran’s native animal breeds
Iran is home to valuable native breeds—some endangered.
Dog pregnancy and whelping
A 63-day guide: diet, whelping box, labour signs and red flags.