squirrel's teeth never stop growing but the animals wear them down by gnawing on nuts and other hard foods the front of the rodent's teeth is actually orange it's because they're covered in special tough enamel bet you're glad you don't have that to deal with some bird species don't mind munching on chili peppers that's because they can't feel the heat peppers burn your mouth because they contain a special chemical capsaicin but birds don't have the taste buds needed to feel its effects the rhino's horn is made of hair or at least the same protein that makes
up your hair and nails this protein is called keratin such a horn is kind of unique since other animals have horns with a bony center the woodpecker can peck the wood 20 times per second this pace is almost too high for the human eye to notice how much wood would a woodpecker peck if a woodpecker could peck wood the number of pecs often reaches a total of eight thousand to twelve thousand a day a starfish does have eyes one on the end of each of its arms these eyes are light-sensitive groups of cells frogs don't
need to drink water instead they have an area known as the drinking patch it's on their bellies and thighs they use it to absorb water directly through the skin well that could save some time most caterpillar species have around 4 000 muscles in their body and almost 250 of them are in the head alone christmas tree worms are much more beautiful than you can imagine but even though the pines look awesome two-thirds of the worms body is hidden in a calcium carbonite tube and the point of this is i don't have one [Music] narwhals famous
tusks are actually their teeth that are kind of turned inside out these unicorns of the sea have just two teeth and in males one of them grows right through their upper lip unlike your teeth this one is tough inside and sensitive and soft on the outside the anti-eater doesn't have teeth but it's not a problem this creature has a super long tongue this tongue helps the animal lap up more than 35 000 termites and ants every day now that's one way to lick hunger the flea can jump more than 200 times their body length if
humans had such an ability they would jump as high as the empire state building the red eyed tree frog's eggs can hatch earlier if they sense their environment isn't safe small animals with fast metabolism see in slow-mo this helps them escape larger creatures koala's fingerprints are very very similar to the human ones sometimes these animals fingerprints even get confused at crime scenes probably in australia the hippos sweat is pink and not exactly sweat it's a reddish oily fluid its function is to not cool the body but to moisturize the skin and protect it this fluid
also functions as an antibiotic so you get sunburned or cut you can smear a hippo all over you polar bear skin is black and the hairs of their coat are hollow and almost see-through these animals have fur growing even on the bottom of their paws this gives them a better grip on ice and protects against coal species of tarantulas some of the largest spiders in the world can live without food for more than two years i still think they're creepy platypuses close their eyes while kissing i mean swimming they have special folds of skin covering
their ears and eyes they prevent water from getting inside these animals nostrils also have a watertight seal emus can't walk backwards but scientists aren't sure why these flightless birds are the only ones that have calf muscles emus can sprint really fast they can also travel long distances but they can't back up crocodiles can't move their tongue because it's attached to the mouth roof it keeps the throat closed and protects the animal's airway water snakes dolphins whales alligators crocodiles and turtles can drown it'll happen if they stay under water for too long these animals can't breathe
in the water they can just hold their breath for a very long time only one species of birds can fly backwards that's hummingbirds hey go talk to the emu these tiny birds can also beat their wings up to 80 times per second despite what elephant shrews look like these small animals are more closely related to elephants than shrews maybe that's why they have their trademark trunk like noses elephant shrews use them to munch on insects true enough cats as well as other felines can't taste sweet things they don't have the taste buds needed for that
too bad more for me flamingos can only eat with their heads upside down that's why their lower bill is massive and their upper bill isn't fixed such an arrangement is perfect for upside down feeding but it's the opposite of what other birds have it's not easy being pink tiger skin is as striped as their fur that's all i have to say about that when two cans sleep they curl into pretty tight balls these birds can turn their head so that their tail covers their head and the beak rests on the back so yeah they have
a ball the ostrich has some of the largest eyes in the animal kingdom they're more massive than a bird's brain each eye is as big as a billiard ball all clownfish get born male but in some circumstances they can turn into females this change is irreversible unlike most fish when sea horses mate they do it for life even cuter when the mates travel they move side by side and often hold on to each other's tails the male usually gets stuck schlepping the luggage termites never sleep they don't need to recharge their batteries but they can
eat 24 hours a day seven days a week on your house the sloth needs up to two weeks to digest its food hey take your time no hurry nothing on the schedule dogs nose prints can be used for their identification they are similar to human fingerprints and unique for each animal owls don't have eyeballs instead they have eye tubes that don't move in the eye sockets penguins don't have external ears but their hearing is especially sharp especially when they're on the lookout for polar bears shh let's not tell them jellyfish are up to 98 water
that's why when they get washed ashore their bodies can evaporate into the air after just a few hours if a traffic jam happens underwater an alligator will always give way to a manatee nice manners grizzly bears have such a strong bite that they can crush a bowling ball so it's smart just to let them win giant pandas aren't picky about their sleeping spots they usually fall asleep wherever they are in most cases right on the forest floor the giant panda's newborn cubs are tiny they weigh like a small cup of coffee and are smaller than
a mouse the red hand fish can walk along the ocean floor with the help of its hands but of course they are not hands but evolved fins really cats don't usually meow at each other a study has shown the felines use this way of communication mostly to get attention from us humans and it works sloths can't shiver it's not that they're too busy digesting that two week old meal their fur is sometimes covered with algae and when they get too hot or too cold their metabolism shuts down during the hard times immortal jellyfish transform themselves
back into their younger state once they reach the stage when they're nothing but a blob of tissue like me these creatures start to grow again and this process can apparently repeat again and again the closest living relatives of the t-rex are chickens and ostriches don't turn your back the moray eel has another set of jaws that can extend from his throat first the main jaws close around an unlucky sea creature then the additional set grabs the eel's future meal with backward pointing razor sharp teeth and after that the captured animal gets dragged back into the
eel's throat i just lost my appetite some species of snails have hairy shells thanks to these hairs snails can better stick to wet surfaces when humpback whales hunt they often gather in a group and apply a bubble net tactic to catch their food the bubbles don't let the schools of fish get away snow leopards can't roar like other large felines it has to do with their less developed vocal cords but these animals can meow growl hiss and even purr not to drift away from their group while napping sea otters hold hands they can also entangle
themselves in giant seaweed for the same purpose hey it kelps lions are often called the king of the prairie i thought it was the king of the jungle and still up to 90 percent of all the hunting in the pride is done by the females the males are in charge of protecting the territory and the pride members and they make the delicious potato salad known as hakuna matata cats are famous for their uncanny ability to move their ears all because kitties have 32 muscles in each outer ear some shark species can glow in the dark
unfortunately only other sharks can see this greenish glimmer you have up to eight thousand taste buds but your pooch has just a bit over fifteen hundred the blue jay can imitate other birds its favorite is a hawks cough the blue jay uses it to scare away other birds from its territory slow lorries are insanely cute and just as treacherous they're the only known venomous primates they have a gland in the crook of their inner arm it secretes toxins that can cause unpleasant consequences in people the heart of beast has an amazing evasion tactic to run
away from other animals they move in a zigzag pattern bottlenose dolphins have names for one another those are specific whistles hey bob hey charlie hey dolly hey boys and thanks for all the fish giraffes have long and i mean it black tongues scientists suppose this color might protect the tongue from getting sunburned well that's all i got see ya
