When dogs look their human companions in the eyes, it could be a sign of love rather than begging.
Animals have friends as well, but cows have been shown in studies to have 'best friends,' even displaying signs of distress when separated from them.
Rats enjoy being tickled. They laugh with high-pitched chirping, and some rats prefer being tickled to eating.
Snakes use their tongues to smell.
Snakes have ears on the inside of their heads.
Some snakes can go for up to two years without eating.
Every year, snakes kill 10,000 people.
Snakes have no eyelids.
Giraffes and humans have the same number of neck bones.
The giraffe's age can be calculated using its spots. The older the giraffe, the darker the spots.
Giraffes rarely lie down; in fact, they sleep and give birth standing up.
Giraffes are the only animals with horns at birth.
The tongue of a giraffe is so long that it is used to clean its ears. The tongue is black in colour. This is one of the strange animal facts about giraffes.
The Sun Bear has the longest tongue of any bear species, measuring 8 to 10 inches. If the Sun Bear is grabbed or bitten around the head, it can turn around and bite the predator from inside the wrinkly skin on its head.
Sun bears are also known as "Dog Bears" because of their glossy fur, short snout, and small size. They bark to ward off predators and to mark their territory.
Sun bear claws grow throughout their lives, and the length of their claws can be used to determine the age of a sun bear.
The female red kangaroo has three vaginal openings.
When two kangaroos first meet, they touch their noses and sniff each other. Males smell female urine to see if she is ready to mate.
Ancestors of the Kangaroo lived in trees.
There are currently eight species of tree kangaroos.
Elephants can detect water from a distance of a dozen miles. Humans treat elephants as slaves, immobilising them and depriving them of food and water for up to three weeks. Rarely, an elephant will commit suicide by stepping on its trunk and refusing to budge, cutting off its own air supply.
Bees frighten elephants.
Elephants sleep only 2 to 3 hours per day.
An elephant can detect water from a distance of 12 miles.
One of the most fascinating fun facts about elephants is that they can be pregnant for up to two years.
Sleeping frogs keep their eyes open.
It's difficult to sneak up on a frog. They can see in all directions at the same time. Frogs do not consume water. It is absorbed through their skin. Croaking is used by male frogs to attract female frogs.
A hippopotamus can hold his breath for 4-5 minutes. Hippopotamuses have their babies in the water. They rest in water to regulate their body temperature because they lack sweat glands.
A cat spends two-thirds of its life sleeping.
Tigers have stripes not only on their fur but also on their skin. No two tigers will ever have the same stripes, just as no two humans will ever have the same fingerprints.
Animals and pets can alleviate feelings of loneliness and isolation by providing companionship to people of all ages and lift our spirits.
When human intelligence measures are applied to other species, dolphins come in second only to Homo sapiens in brainpower.
Goldfish can not only listen to music, but they can also tell one composer from another.
Honeybees can count, categorise similar objects such as dogs or human faces, understand "same" and "different," and distinguish between symmetrical and asymmetrical shapes.
Crows never forget a single face they see. And if they don't remember you fondly, they won't forget your face because they hold a grudge against you. Surprisingly, their grudge is passed down to the next generation.
Animals such as worms, birds, cats, and dogs have the ability to detect earthquakes before they occur.
Specially Some insects, such as worms, can even predict earthquakes a week in advance.
The songs of humpback whales spread like "cultural ripples from one population to the next."
A type of "immortal" jellyfish can avoid death indefinitely.
Dogs have a 100,000-fold stronger sense of smell than humans, but only one-sixth the number of taste buds.
Human friends come and go, but a horse can be one of your most devoted and long-term companions if properly cared for.
Horses have "excellent memories" and can learn and memorise human words, as well as hear the human voice better than dogs can due to their unique hearing range.
Each ear of a cat contains 32 muscles. All the more reason for them to listen in on your conversations and plot your demise.