Facts about the animal kingdom

Diversity refers to the vast variety of species which live in the animal kingdom. They are grouped according to various characteristics, some of which are more alike than others. Diet is one of the categories into which animals of various types and species are grouped. These groups are more diverse than...

We can tell whether a person is left- or right-handed by their actions. Their dominant hand is determined by how they eat, open doors, play music, write or do many other functions. Dogs do not use their paws in the same way as humans, so it can be more difficult to determine whether they are right-...

In the different regions of the earth there are animals that, although they are also found in other countries, are considered representative of these places. A concept that is relevant to this aspect of biodiversity is that of endemism, which describes species that are characteristic of a place and whose...

Swallows are a diverse group of birds in the family Hirundinidae, characterized in part by their typical way of drinking water and hunting in flight, as well as their ability to feed chicks while hovering in the air. These flying vertebrates are common in almost all regions of the world, and most species...

Swallows are several species of birds that belong to the Hirundinidae family and have a wide distribution. Some are migratory birds, others are not. Those that are migratory can travel thousands of miles south to below the equator to find warmth and food during cold months. When winter is over, they...

Normally, we think of squirrels as very active animals and skilled climbers. Some species are even able to glide from one tree to another. However, as is usually the case, these behaviors are closely related to their environment and the habitat in which they live. Squirrels are widespread throughout the world...

Although they communicate mainly through body language, cats make all kinds of sounds that have different meanings. The meow is certainly the best known of all. If you share your home with a cat, you have probably asked yourself questions like “Why does my cat meow when it sees me?”, “Why does my cat...

The majority of us live in cities, where birds have adapted to the new conditions and become urbanized, so we see birds every day – in the garden, on the street, in the park, and of course in the countryside. Although birds can bring color and music to your yard, but they can also cause chaos by eating plants,...

When it comes to chickens, the average person usually has a few questions. You may be wondering about the difference between chickens and roosters. While it is unmistakable when a rooster crowls and struts, it is sometimes difficult to tell which is which. But how can we know at 3 months of age if it is a rooster...

Flightless birds are birds that have lost the ability to fly through evolution. There are over 60 species of flightless birds, including the well-known ostriches, emus, kiwis, and penguins. There are several domesticated birds, such as the domesticated chicken and some domesticated ducks, that have also...

Chickens are one of the most common and widespread domestic animals. There are more chickens in the world than any other bird.Although hens are birds and have wings, they cannot fly, at least not like sparrows or pigeons, for example. Contrary to what one might expect, the ancestors of hens were decent...

Cats progress through a number of stages in their lifetime, and as a cat owner, you should learn about these stages of your cat's development. Knowing about the different stages a cat goes through is important, because it helps you understand why your cat behaves the way it does at certain stages of its...

There are few creatures in the animal kingdom which are so similar, yet have such different reputations. One is considered a wonder of nature and a joy to witness. The other is generally perceived as a pest and a threat to wool cardigans everywhere. Despite having many similarities, there are key differences...

Parrots belong to the family Psittacidae, which in turn is divided into three different subfamilies: Lorinae, Cacatuinae and Psittacinae. Together, these three subfamilies comprise the more than 350 species of parrots. All species are monogamous, meaning they have a single partner throughout their lives, which...

A famous axiom claims ‘dogs have owners, cats have staff’. This is due to the cat's reputation as being aloof and even contemptuous of their human guardians. While dogs may bound to our side if they hear us shuffling in a different room, you could call all night for a cat and they won't leave their comfy...

When we think of the relationships between humans and dogs, we think of them being our best friend. This is reasonable considering the relationships we see with our friends and their animal or even on various social media platforms. If we adopt a dog and find they are not immediately our best friend, it can...

The pine processionary moth (Thaumetopoea pityocampa) is a moth in the subfamily Thaumetopoeinae in the family Notodontidae, known for the irritant hairs on its caterpillars, its processions, and the economic damage it causes in coniferous forests. It is notable for the behavior of its caterpillars, which overwinter...

As recently as 10,000 years ago, the saber-toothed cat Smilodon fatalis was a fearsome predator found throughout North and South America during the Pleistocene. The prehistoric saber-toothed cat, with its seven-inch-long canines, weighed up to 600 pounds and was one of the most famous prehistoric mammals....

Animals come in all shapes, sizes, and species. The Dreadnoughtus was the largest animal ever known to exist. This Tintanosaurus lived 77 million years ago and measured about 85 feet (ca. 27 meters) long. It was the largest animal ever known. Today, the African elephant is the largest land animal, with an...

Also known as a woodchuck, the groundhog belongs to the order Rodentia and the family Sciuridae. This is the family to which squirrels belong, making them very close relatives of tree squirrels. Theirs is the genus Marmota which is divided into two subgenera, 15 species and 42 subspecies. They are generally...

If we have adopted a dog for the first time, there are many behaviors which can seem surprising to us. Although we expect to develop a strong bond with our animal, some discover their dog will follow them everywhere they go. This can happen either inside the home, outside when walking or both. For some...

Reproduction is a fundamental process for all animal species on our planet. Without it, there wouldn't be any animals left to populate it. For it to take place effectively, reproduction has to adapt to each specific animal. This is due to various factors, including morphology and habitat. The result is...

There are many species of cetaceans, which are divided into two major groups: Mysticetes, which have beards, and Odontocetes, which have teeth. There are several families of dolphins, and most of them are distinguished by their social skills, even with humans, and by their striking way of communicating....

Animals and other organisms are distributed all over the world. Even in the seemingly most inhospitable habitats, life can often find a way. However, not all creatures are up to the task. For life to survive, organisms have developed various adaptations and processes to allow them to live in harsh environments....

Amphibians belong to a group of vertebrates with specific characteristics, because from the point of view of structure, they are between fish and reptiles, and because of this, they can live both on and off land in most cases. There are currently three types of amphibians, commonly known as frogs and...

The term killer whale is partly very apt. Although beautiful and fascinating marine mammals, they are intelligent and prolific hunters. Although they survive only in water, they are able to catch prey from land close to the water's edge. Their massive strength, sharp teeth and great intelligence make them...

Cats have a reputation for being selfish and unaffectionate. While they may be generally more independent than some other pets, the bonds with they forge with their human guardians can be as strong as any companion animal relationship. Their level of affection and interaction will depend on the individual,...

Some animals have an intense coloration which can easily attract attention. Often these colorations can present in various patterns and shapes, with some animals looking as if they were painted by a Cubist artist. We can see these beautiful works of nature in frogs, butterflies, birds, insects and more....

Cats are almost synonymous with sleep. Although they can be very active and agile, they need to spend the majority of their dat at rest. While asleep, we may see them make noises or movements, something which can lead us to ask if cats can dream? Taking it further, if they can dream, do cats have nightmares? In...

If you are not familiar with rat behavior, it can be very difficult to drive them away. They reproduce extremely quickly and are capable of transmitting disease to humans and vice versa. In houses and apartments around the world, rats find shelter and food, trying to go unnoticed as much as possible. In...

Many of us may think there is only one type of tapian snake, but there are more. All snakes within the genus Oxyuranus are types of tapian snake, of which there are three individual species. They are known as being one of the most venomous snakes in the world. Combined with the fact they can strike incredibly...

In the suidae family are several species of animals commonly known as pigs and wild boars. In the latter family, the wild boar sus scrofa is usually referred to as a pig. There are other species that are referred to this way, such as the desert warthog ( Phacochoerus aethiopicus ) and the common warthog...

Turtles of all kinds, both aquatic and terrestrial, belong to the order Testudines, characterized by a shell mainly made up of their ribs.Turtles are an ancient order, but modern turtles differ significantly from what is documented in fossil records.There are 360 living and recently extinct species of turtles,...

Some dog behaviors, such as mounting, can make us uncomfortable and even embarrassed. However, it is important that you do not punish or suppress your dog for these behaviors, because they are perfectly normal. What may seem strange to us is often natural behavior in dogs. We tend to anthropomorphize our...

Seasonal changes are common in most ecosystems, and in some cases they can be very extreme. Animals are often affected by these changes as temperature and precipitation cycles change throughout the year. These changes affect, among other things, the animal's ability to reach food or water. For this reason, cold-blooded...

We know that cats do not show love to their guardians in the same way humans do with each other. They cannot speak verbally with us, so they have to rely on body language and other forms of communication. When we see them rubbing their face against us, it is a clear sign of affection or perhaps a petition...

Otters are perhaps best known for being adorable. Their expressive face, dexterous paws and mischievous manner make them prime fodder for memes and YouTube videos. Although controversial and something we believe should be discouraged, they are even becoming popular as pets. Despite such increased visibility,...

Koalas (Phascolarctos cinereus) can be found on every continent due to their unique and adorable appearance. Its long, stout, tailless body, large head with round, fluffy ears, and spoon-shaped nose make it impossible to miss. Though they appear to be bear-like with their round ears and big, black nose,they...

Mammals (Mammalia) are a class of vertebrates that includes many species, including humans and all other warm-blooded vertebrates. They are known to have more complex brains than other animals. They also have mammary glands to feed their young, which produce milk with the help of a neocortex. Most of...

It is often believed there are two types of camels. These are recognized as a camel with two humps versus a camel with one hump. There is some truth to such conventional wisdom in that we can broadly recognize two distinct camelid groups, but their classification is more complicated. All camels are camelids...

Snakes are chordates belonging to the class Reptilia, the order Squamata, and the suborder Serpentes. Snakes represent a unique group of reptiles. As limbless animals, snakes have inspired both fascination and fear, as many of them can be deadly venomous. However, snakes do not bite out of malice and do not...

All living beings have the ability to produce new cells and tissue. These are important actions for the organism as they help maintain functionality. They are also very important when they receive trauma or other damage such as when sustaining a wound. In the animal kingdom, there are some species which are able...

Birds are a group of vertebrates with an impressive diversity in the animal kingdom. Aside from their beautiful physical features and the variety of their songs, birds also vary greatly in size. While there are some birds that are quite small, like insects, there are others that are so large that they remind...

If you were to think of a pigeon, there is likely one specific species which springs to mind. Perhaps it is surprising that we can find 369 identified species within the Columbidae family, the family in which all pigeons and doves can be found. These birds have various sizes, but generally all have...

Flies are a group of invertebrates that belong to the class Insecta and the order Diptera. The name Diptera derives from the Greek and means “two”. Flies are included in this group because unlike most insects, they have two wings instead of four. There are several species of flies and these are classified...

For such small creatures, mice have a very acute sense of smell. It is a necessary evolutionary trait which allows them to find food sources in dark environments or areas where food is scarce. It is one of the reasons we can see a mouse has eaten through food packaging, since they can smell the food...

When we talk about squirrels, we are referencing animals of the Sciuridae family. While many of us will immediately think of a bushy-tailed red squirrel running up a tree, we should know the diversity of this family is great. In fact, there are so many different rodents in this mammal family that they...

Seals, sealions and walruses are often confused with each other. While they do have specific differences, they are all marine mammals with similar body structures. They have flippers to swim, canines to eat fish and fur to protect them from the cold. When spotted in the water, it can be difficult to tell these...

Raccoons are native to North America, similar in size to a small dog. Although they are mammals in the order Carnivora, they have a truly omnivorous diet. Thanks to human settlements developing in their natural habitats, raccoons are coming into contact with human populations more frequently. This is often due...

The cougar is a large felid native to the American continent. Their habitats range over large areas from north to south of the region, making it a mammal with one of the widest distributions of the entire Northern Hemisphere. Such large distribution means it has been given various names by various communities....