Smell

Snakes smell with their tongue.

Otter poop has the strangest smell.

Otter poop has such a unique smell that it has even ended up with its own name - spraint.

Scientists say that its smell is like that of violets.

Horses are often seen in photographs "laughing" or "smiling", but this movement is actually to help them smell better.

A 2013 study found that the smell of chocolate in a bookstore made customers 22% more likely to buy books of any genre and a whopping 40% more likely to buy cookbooks or romance novels.

Dogs have a great sense of smell.

One interesting fact is that dogs have an incredible sense of smell.

Horses also have a strong sense of smell, which helps them detect danger and find food.