All mammals have hair.
Whether it be an anteater, aardvark, or aardwolf, one of the characteristics all members of the mammal family share is hair. In fact, mammals are the only animals on earth that have fur or hair covering their entire body.
Hair protects us against predators and regulates our body temperature by trapping heat close to our body when we’re cold and releasing heat into the environment when we’re hot.
Hair is made up of a protein called keratin, which also makes up our nails and teeth. Some mammals use their hair for communication as well: Cats rub their heads against things to leave chemical signals from glands in their skin that tell other cats who they are and what they’ve been doing.
All mammals are warm-blooded.
All mammals are warm-blooded, which means they can regulate their body temperature and don’t need to rely on the sun or other heat sources to maintain it. They can live in cold climates or hot climates, though the way they deal with temperature varies. For example, a raccoon may be active at night during the summer because it stays cooler then, while a bat that also lives in hot places may become inactive during the summer when its insect prey are not available.
All mammals give birth to live young.
It’s a fact that all mammals give birth to live young, except for some cool exceptions. You’ve probably heard of marsupials and monotremes? These are the mammals that lay eggs. There are over 4000 species of placental mammal, but only 22 species of monotreme and 190 marsupial species. Monotremes include the duck-billed platypus and spiny anteater; marsupials include the kangaroo, koala, wombat and Tasmanian devil (you know…the one from Looney Tunes).
All mammals require milk in their early lives (with the exception of whales, who feed on their mother’s milk but never suckle).
As you can see, the benefits of breastfeeding are many! In addition to being the best possible source of nutrition for a baby, it also helps babies develop their immune systems. Studies show that breastfeeding can help babies avoid disease, lowers their risk of SIDS and type 2 diabetes, and even has been linked to higher IQs in adulthood.
In addition to the health advantages, breastfeeding often helps mothers bond with their children. It promotes oxytocin (a hormone which increases feelings of happiness and connection) in both mother and child, which means that parents who breastfeed will find themselves feeling more connected with their kids than those who don’t.
Finally, breastfeeding is a great option for anyone who’s environmentally conscious: it requires no energy or resources other than your own body! This makes it an excellent choice for feeding your baby while keeping our planet healthy.
The average gestation period for all mammals is 63 days.
You might think that gestation periods are limited to the human realm, or that they’re different for animals than they are for people. But it turns out that all mammals, from dogs to horses to humans and everything in between, have a gestational period of 63 days—give or take.
The exact length of the gestation period can vary depending on the number of offspring produced by the mother; moreover, this variance is not only species-specific but individual-specific as well. For example, an elephant mother usually carries her baby for 630 days; however, this can increase to 660 days if the mother is having twins. A single dog pup takes about 58 days to develop (and two pups take about 64), but one cat litter can be born after 60 days and another after 73. Some animals require longer pregnancy periods because their offspring don’t fully develop until later in their gestation period.
Mammals’ hearts have four chambers, unlike those of other animals.
All furry friends have four-chambered hearts. Many people don’t realize this, and think that only humans have such a heart structure. A four-chambered heart is one of the things that makes you a mammal. All mammals have these hearts, including your dog, cat and horse.
In fact, it’s true that most animals have three-chambered or two-chambered hearts. The animal kingdom is full of creatures with chambers fewer than four: spiders, mollusks and even some fish use their three- or two-armed variants to pump blood through their bodies.
You might be wondering what exactly a chamber is and why it matters if there are more or fewer. A heart chamber is an area inside of your heart where blood collects before being pumped out again for circulation throughout the rest of your body. When someone talks about “four chambers,” they’re talking about the left atrium, left ventricle, right atrium and right ventricle—and when all these pieces work together in harmony, they make up a heartbeat!
Mammals have lungs rather than gills and breathe air through a trachea, as opposed to fish, who must swim all the time and take in oxygen via their gills.
Unlike fish, mammals have lungs, rather than gills. They breathe air through a trachea, as opposed to the way fish must swim all the time and take in oxygen via their gills via a gill slit. This is one reason why you never see goldfish sitting still on the bottom of their bowl! On top of that, mammals have a four-chambered heart, whereas most fish only have two chambers. One of these chambers is used for “deoxygenated blood,” which helps to nourish tissues with nutrients and oxygen while also removing waste products such as carbon dioxide.
Male and female mammals both have mammary glands, which produce milk for their babies. In most cases, only females will produce milk after giving birth. In some species, including elephants and hippopotamuses, males can also lactate and feed their young.
Did you know that male and female mammals both have mammary glands? These glands produce milk for their babies. In most cases, only females will produce milk after giving birth. In some species, however, males can also lactate and feed their young—an unusual but cute fact!
Mammals sleep for periods of time. In some cases (like mice), these sleep periods will be very short; in others (like us), they can last for hours on end. Some animals even sleep for longer than we do! Whales, for example, sleep for 90 minutes at a time and dolphins nap for 40 minutes out of every 24 hours.
When we talk about sleep, it’s common to think of it as a long period of time. We go to bed, and then we wake up many hours later. But that’s not the case for all animals. Mammals, for example, tend to sleep in shorter stretches than other types of animals. This can be very short (as with mice) or longer (as with humans), but either way it’s usually less than the 8-10 hours we get in one stretch every night.
Mammals are also more likely to nap during the day; some even take a couple of naps at different times! And if you’re an animal who only sleeps at night, consider yourself lucky—others need a lot more shut-eye than that!
Mammals are social creatures; most live in complex communities or herds that depend on one another to survive.
You might not see lions or baboons playing together in your local park, but that doesn’t mean they don’t like each other. Well, some of them do. Some animal species are solitary; they live alone and prefer to keep it that way. Others are incredibly social, living in large herds with strict hierarchies and specific roles for every member of their groups. Still others fall somewhere between the two, being somewhat social but not as much as other species. If you have a dog or cat at home, congratulations—you’re sharing your space with a semi-social mammal!Friendship is a beautiful thing. It’s comforting to know that someone has your back, or to have a shoulder to cry on when you need it the most. It can be hard to make friends, but sometimes all it takes is one spark of connection for you and a friend to develop a bond that will last a lifetime.
And we’re not just talking about human friends—animals are great companions, too!
Whether you’re looking for an animal companion of your own, or just want to learn more about the amazing creatures you already love in your life, here are 17 things all furry friends have in common.
1. They’re cute as can be.
2. They make great cuddle buddies.
3. They’re always up for an adventure!
4. They love a good snack (especially when they aren’t supposed to get one).
5. They’d do anything for the people they love most!
6. They find joy in the simplest things… like running through an open field at top speed!
7. And getting their bellies rubbed! Or their ears scratched! Or having someone play fetch with them!
8. They have no idea how big they really are (and neither does anyone else).
If you’re a pet owner, there’s one thing you know: they’re just like us!
Whether it’s a dog, cat, bunny, or ferret that you’ve brought into your home and heart, they’re not so different from humans as you might think. Here are 17 things all furry friends have in common with their owners:
1. Both love to play! Whether it’s fetch for dogs or hide-and-go-seek for cats (yes, you read that right), playing is a way we connect with our pets and give them the exercise they need.
2. Both love to eat! Though we tend to prefer the finer things in life (like steak), your furry friend loves a good meal too! They may not have the same kind of table manners that we do, but that doesn’t stop them from being just as enthusiastic about chowing down.
3. Both love to nap! Pets are busy little critters—they need their rest just as much as we do after a long day of running around and playing fetch with our favorite ball.
4. Both love to be petted! We all want to be comforted no matter how old we are, and what better way than some good old-fashioned pets
Do you have a furry friend? If so, you’re part of a huge community!
There’s a lot that goes into caring for your furry friend, but there are also a lot of things all furry friends have in common. Here are just a few:
1. They want to be fed.
2. They want to be petted.
3. They want to be played with.
4. They can’t talk, so they express themselves in other ways, like barking or meowing or shrieking or chirping or whatever it is they do to tell us what’s up.
5. They are curious about you and your stuff and will go through it if given the chance because they don’t judge that way we do.
6. They love sleeping, but will sometimes wake up for no reason at all and then get mad at the fact that you woke them up even though it was totally their idea to wake up in the first place. (Don’t worry—they’ll sleep again soon.)
7. They don’t always understand when it’s time to go outside, so we have to be patient with them as they learn our language (the one where we say “Wanna go out?”) and pick up on our
They come in all shapes and sizes, big and small, old and young. But these [number] things are true of all furry friends.
1. Animals love to get outside.
2. Furry friends are a great source of exercise for your pet owners (and a good reason for them to get outside).
3. Furry friends are good for your mental health!
4. Furry friends make great roommates—they don’t mind the messes you make, and they’re always happy to see you when you come home.
5. Furry friends like to play fetch… with their owners!
6. Furry friends give great hugs.
7. Furry friends are good at keeping secrets (though they may tell on you if there’s a treat involved).
8. Furry friends will be your best friend—no matter what!
9. Furry friends like belly rubs just as much as humans do (if not more).
10. Furry friends have lots of different ways to say “I love you,” from headbutts and purring to licking your face and wagging their tails when they see you coming home after a long day at work or school.
11. Furry friends are
1. All furry friends have fur (shocking, we know!)
2. They all have four legs
3. Some of them are domesticated, some of them aren’t
4. Many of them get along with humans (some don’t)
5. Some are carnivorous, some are herbivores, and some are omnivores
6. They all have a brain (we think) and a heart (again… think)
7. They all give birth to live babies
8. They all need water to stay alive! And food! And shelter! (Oh my!)
9. Most of them can melt your heart with their big eyes/tiny paws/fluffy ears/adorable faces
10. Most of them are cute as heck when they’re asleep/sitting/lying down/cuddling up to you or another animal
11. They can all be very loud when they want something or when they just want to be heard in general! Especially dogs! God bless those dogs for being so loud, am I right?
12. Some of them are very quiet and don’t bark or meow or make any noise at all unless they’re in extreme pain or danger (looking at you, cats)
1. They’re furry
2. They’re friends
3. You can pet them
4. You can have more than one of them
5. They have four legs, unless they don’t, in which case they have two or no legs
6. When you get them as a gift for someone else, they usually like it
7. They eat food
8. Some of them are very good at fetching things
9. Some of them aren’t even that good at fetching things! And that’s okay!
10. Sometimes they drink out of the toilet and that’s gross but they don’t know better so it’s cool
11. Sometimes they are just like humans, except with fur and without thumbs
12. It is possible to be allergic to them but if you’re not then you should get one because they’re really great and you won’t regret it!
13. Just like you, they feel happy when it’s sunny out and sad when it rains or snows or hails
14. Sometimes their ears are floppy and sometimes their ears are pointy and sometimes their ears aren’t even on their head!
15. A long time ago, there was a
3. A tail (sometimes).
4. They’re adorable.
5. They love to run, jump, and play.
6. They may or may not be good at fetching a ball (but you’ll love them anyway).
7. They are the best listeners a human being can hope for.
8. They’ll always want to snuggle when you’re feeling blue (or when they feel like it).
9. They’ll keep you company while you cook dinner or watch TV.
10. They make the best gifts ever. Especially if they’re puppies!
11. Petting them is super therapeutic and helps lower your blood pressure, which is great for both you and your furry friend! Win-win!
12. Sometimes they can be destructive, but that’s just because they get so excited about everything! And you’ll still love them anyway—honestly, it’s hard to stay mad at them for long anyway (all that cuteness!).
13. If there’s a bug in the house, chances are your furry friend will eat it before you have time to think about doing anything about it yourself! We recommend keeping their food bowl filled in case of emergency bug-