Flamingos can only eat with their heads upside down.
These tall pink characters use their tongue as a sieve to catch food by flipping their heads about. The flamingo’s tongue helps pump the food-filled water in and out of their mouths about three times a second. This technique is called filter feeding!
This feature is what allows cats to swivel and rotate their ears so that they can pinpoint the source of a noise. But what's more incredible is that they can move each ear independently and rotate them 180 degrees!
The chicken and the ostrich are the closest living relatives of the Tyrannosaurus rex.
In 2003 scientists used collagen in ancient dinosaur remains to figure this out. They had suspected the dino-ness of birds for a long time, and finally here was actual evidence. Before this discovery, many experts believed that dinosaurs were giant reptiles, but it turns out they were basically massive chickens. A thought that makes Jurassic Park a little less scary... or maybe even more scary?
You can't tickle yourself because when you move a part of your own body, a part of your brain monitors the movement and anticipates the sensations that it will cause. So we humans can't tickle ourselves because what makes tickles ticklish is that they are surprising!
Dr Seuss first used the word ‘nerd’ (which he meant as a ‘comically unpleasant creature’) in a book called If I Ran To The Zoo in 1950. Little kids reading Dr Seuss loved the word and passed it on to their older siblings. After that, the meaning of the word began to change to mean someone who wasn't very cool... then changed further to loosely mean someone with an obsessive interest in something - either way, who doesn't love a nerd?
In some novels published in the 1960s, Barbie’s parents' names were given as George and Margaret Roberts, and apparently, they all lived in the fictional town of Willows, Wisconsin. Don't be fooled by the improbable proportions that she got - She's just Barbie from the Willows.
People used to believe that kissing a donkey could relieve a toothache.
Yep, that’s right! People have always done rather odd things to prevent toothache. For example, the Ancient Egyptians scrubbed their teeth with a powder made from ox hooves and eggshells. But weirder still, during the Middle Ages in Germany, they thought a cure for a toothache was kissing a donkey. Even if it did something for your toothache, it certainly won't do anything for your breath.
Your body contains about 100,000 miles of blood vessels.
A bit gross, but if you took all the blood vessels (including arteries, veins and capillaries) out of an average child and laid them out in one line, the line would stretch over 60,000 miles. An adult's would be closer to 100,000 miles long.
An ostrich is the biggest bird in the world, and it has the largest eyes in the whole animal kingdom – that's right, its eyes are bigger than its brain. Having said that, its brain isn't that big! An ostrich's eyes are about 2 inches or 5 centimetres in diameter, which is around the size of a ping pong ball.
If you open your eyes in a pitch-black room, the colour you'll see is called 'eigengrau'.
‘Eigengrau’ is German for ‘intrinsic grey’, also known as dark light, or brain grey. It is used to describe the uniform dark grey background that many people see in the absence of light. The term dates back to the nineteenth century.
Humans are the only species known to blush, but we still don't know why. Charles Darwin called blushing ‘the most peculiar and the most human of all expressions. It can definitely be super embarrassing!
Welcome to the vomit void. Bunny rabbits are very hygienic creatures who self-groom in much the same way that a cat does. But the rabbit’s digestive system does not move in reverse, meaning rabbits cannot bring up hairballs like a cat can. So basically if you're banking on a burst of bunny barf, don't hold your breath.
In a video, NASA astronaut Tony Antonelli said that space smells "strong and unique". He said he has never smelled anything like it on Earth. Others have described the smell as “seared steak and raspberries”, smokey and bitter. Mmm, delicious outer space!
The unicorn was a symbol of innocence and purity in Celtic mythology. However, it was also associated with power and masculinity. Romantic stories about chivalry and dominance associated with the unicorn may be why it was chosen as Scotland's national animal... or maybe they were just having a laugh. Either way, we approve!
These domestic cats were trained to deliver mail in the city of Liège. Waterproof bags containing letters were tied around their necks and then were driven out into the countryside, miles away from their homes and let go. They all made it home within 24 hours. Ultimately the scheme was abandoned as it was easier to deliver the mail yourself than rely on a cat!
Humans also yawn on average 20 times per day, so in total, that's 120 seconds or 2 whole minutes you spend yawning each day. Yawning is contagious, so even reading this, and thinking about yawning, might make you yawn. (Bet you a zillion quid you just yawned. Are we right?)
And that’s not even the weirdest flavour they have! Fancy some horse meat flavoured ice cream? No probs. Chicken? here's a tub, fill your boots (best place for it). Garlic?! Soy Sauce?! You're in luck. Welcome to Japan!
There are around 982 million chickens eaten each year in the U.K. by 66 million people... this statistic means that should the chickens decide to take over the country, (a la Jurassic Park) we would be massively outnumbered. The threat is real, people. Come the chicken uprising don't say we didn't warn you.
A 2011 study revealed crows can remember the human faces of those who capture them. According to another study, ravens, including crows, jays and magpies, can 'hold grudges' for up to two years. So make sure you don't upset a crow, because they just won't let it lie!
Eight years before Waterloo (another humiliating defeat for Napoleon), he was beaten by a barrage of bunnies. He was signing a treaty when the rabbits (who had been captured) were released to be hunted. Instead of running away, they attacked their would-be hunters, including Napoleon, who was forced to flee.