Facts about the animal kingdom of All animals
219 articles
Although we may have a clear impression of what is a seagull, the term is an informal name for various types of bird. All are grouped in the order Laridae, but there is much taxonomic controversy over which birds should be considered sea gull types. There are around 50 species of gull which can be found...
Starfish, commonly known as sea stars, have captivated people with their remarkable appearance and intriguing characteristics. These mesmerizing marine creatures are renowned for their distinctive star-shaped bodies, featuring five arms that radiate from a central disc. With their vibrant colors and intricate...
Crepuscular animals are those that are most active during the twilight periods of dusk and dawn. This is a period of low light where the sun has not set, but is below the horizon. Animals will adapt to their environment in many ways. Crepuscular animals have their own adaptations which make them better...
The mythological animals from ancient Greece have permeated cultures worldwide, remaining as legends long after their origins have been forgotten. While mythological creatures from many cultures still influence modern thought, those from ancient Greece are particularly resonant. This is partly due to the Greek...
In the mesmerizing world of the animal kingdom, every creature holds its unique place, characterized by a distinct set of features and evolutionary traits. Among these captivating organisms is the snail, a creature that has intrigued and captivated curious minds for centuries. However, a fundamental question...
Oceanic food chains contain some of the largest organisms in the world, such as whales, feeding on some of the smallest organisms, such as phytoplankton. We know this thanks to the great work of many marine biologists, but the difficulties in exploring the depths of the ocean mean our understanding is still very...
Bedbugs, ticks, and fleas are three common insects that can infest your home and pets. While these pests may share some similarities, they have distinct characteristics that set them apart. Understanding the differences between bedbugs, ticks, and fleas is important in identifying the source of the problem...
Scavenger animals are those that feed on carrion, i.e. the dead and decomposing bodies of other animals. Food chains are linear structures where one animal preys on another, which preys on another and so on. It is important to remember that food chains are a part of food webs, much more complicated networks...
The difference between a fawn and a doe deer is to do with age and sex, not with breed. Different types of deer live in different regions, but we use the same terminology for the ages and sex of all true deer species. Many people want to know the difference between the two for hunting purposes, but this...
Some of the most venomous mammals in the world include the platypus, skunk, slow loris and the Cuban solenodon, animals we may think of as being more cute than deadly. We often associate the ability to produce venom with animals such as snakes, scorpions and spiders. Predatory mammals tend to have other...
An octopus is a type of cephalopod, a class of marine animals that also includes squid, cuttlefish, and nautilus. Octopuses are fascinating creatures that have captured the imagination of humans for centuries. From their ability to change color and shape to their impressive intelligence, these creatures...
The danger catfish pose to humans depends on the individual species, something which varies greatly. This is partly due to the vast amount of different catfish species we can find. All within the order Siluriformes, there are around 36 families of catfish containing over 3,000 individual catfish species....
Reptiles are a diverse group of vertebrates, with almost 12,000 individual species currently falling under this categorization. With such diversity, you may not be surprised to know reptiles differ in various ways, including physical characteristics, behaviors, habitat and diet. Many of these factors influence...
Birds are some of the most fascinating organisms in the animal kingdom. Although they are not the only animal to fly, their ability to do so allows for unique migratory behaviors and other impressive abilities. They also have a diversity and beauty in their appearance which has inspired naturalists since...
Echinoderms are a diverse group of marine animals belonging to the phylum Echinodermata. They are characterized by their radial symmetry, that is, their bodies are arranged in a symmetrical pattern about a central axis. Echinoderms are found in all oceans of the world, from shallow coastal waters to the...
Frogs are vertebrates, which means they have bones. However, the bones of frogs can tell us a lot about their anatomy, physiology, and evolutionary history. Frogs have adapted to a variety of aquatic and terrestrial habitats, and their bones reflect these adaptations. Moreover, development from tadpole to adult...
Sleep is a state of rest which allows animals to alter various physiological processes. This is necessary to conserve energy, help muscles rest and perform various other functions. Other organic processes change to facilitate this such as altering brain function and slowing respiration. Different animals...
The word "fish" refers to numerous species. So it should not be surprising that there is more than one way to reproduce and be born. Most fish are oviparous, that is, they reproduce through eggs that are hatched after being laid by the parents, as in birds. However, there are also ovoviviparous or viviparous...
Hair is a keratinized structure which can be of varying qualities. It is the same basic material which makes nails, yet it can also be incredibly soft and fluffy. The only animals that truly have hair are mammals. It is generally used for thermoregulation, both to keep the animal warm and to cool them when...
Ants belong to the class of insects and are grouped in the family Formicidae. It is a very diverse group, as there are more than 10,000 species, although it is estimated that this number could be much higher. The ants are distributed worldwide, except for some islands and Antarctica. One of their most outstanding...
Respiration is a vital function for all living things, from protozoa to higher animals and, of course, humans. Animals have different respiratory systems, depending on the species and the mechanisms that have developed over centuries of evolution. These systems vary in complexity depending on the species,...
The animal kingdom is characterized by a great diversity, in which each species has evolved different characteristics and strategies to ensure its biological success. Reptiles are a diverse group, so it's not surprising that they have developed different reproductive methods.
The following AnimalWised...
Amphibians belong to the phylum Chordatea. This is a taxonomic class that includes three orders. One of them is the anurans, which include frogs and toads. These fascinating amphibians are anatomically and physiologically adapted to a dual life in water and on land, and undergo metamorphosis to become adults....
Insects are the most diverse class of arthropods on our planet, exhibiting a wide variety of characteristics and adaptations. Depending on the species, they can walk, fly or swim and have conquered an infinite number of habitats. Insects differ from one another in their anatomical, biological, and ecological...
Canids are a very diverse family of carnivorous mammals, with about 34 species. Most of them have a very similar body structure as well as specific characteristics such as a highly developed sense of smell and hearing, which are crucial for their survival. Because coyotes and wolves are closely related and...
We group animals together taxonomically for many reasons. The research which is undertaken to investigate the animal kingdom is vast and incredibly complicated, so classifying animal species helps us to better understand them. Another reason is that the common names we give animals can be very confusing. A...
Ecosystems exhibit complex dynamics. They are made up of different components that constantly interact with each other. It is a process in which all living things participate, some as predators, others as prey. Snakes are undoubtedly dangerous species known for their hunting abilities, but snakes are also...
Whales belong to a group of marine mammals known as Cetacea. As mammals, whales also have lungs, just like us, and breathe air, just like us. Most people believe that whales are a type of fish because they are perfectly adapted to life underwater. However, this is not true at all. Whales are warm-blooded,...
The animal kingdom is one of life's greatest success stories, a collection of millions of species that swim, burrow, run and fly all over the planet. All this diversity, from bees to dolphins, evolved from a common ancestor that probably lived more than 650 million years ago. Recent studies suggest that...
Is there anyone who has not imagined being attacked by a shark on the beach? This widespread thought may have its origin in the ferocious appearance of these animals and in the numerous movies in which they star. Although they are among the deadliest predators in the marine world, there are very few attacks...
Annelids are a very diverse group of invertebrates which some people think of simply as worms. While all annelids are types of segmented worm, not all worms are annelids. There are more than 1,300 annelid species that we have discovered so far. Within this very large group we can find terrestrial, marine...
We often refer to nature's ecosystems as being in a delicate balance, but this estimation can be misleading. While science does its best to understand how these ecosystems might change under the influence of certain new developments, nature itself often finds ways to adapt which are extraordinary and...
Being the most diverse class of animals on the planet, insects have incredible differences in appearance when we compare one species with another. These variations apply to almost every physical aspect such as coloring, appendages and size. While we correctly think of insects as being small in size, this is...
The relationships different animals with each other in a given ecosystem can be incredibly complicated. It is difficult for us to know exactly how their interactions function to create a stable ecosystem, but the endeavor to study it is worthwhile. It is for this reason, we have categorized different types...
The interactions between plants and animals are very complex. Any disruptions to these relationships can be very disruptive to a given ecosystem. While the relationship between fruit-eating animals and the fruit they eat can seem straightforward, it is usually part of a very complex reciprocal relationship....
So much of biology is spent categorizing animals into different groups. This is based on various physical characteristics and behaviors. One of the most important areas of study in nature is the relationships animals have with other animals. Mutualism is one such example of the fascinating interspecies...
Hyenas are mammals of the carnivore order, taxonomically classified in the suborder Feliformia. Although phylogenetically closer to the felids and viverrids, hyenas resemble canids in behavior and morphology. Hyenas are generally associated with scavengers, but can also hunt live prey. Hyenas have several...
Although phylogenetically most closely related to cats, hyenas share many behavioral and morphological traits with dogs. Over time, there have been several genera of hyenas, but most of them have become extinct. Today, there are only four species left, making it the least common family of mammals. Despite...
Insects are the most diverse animals on the planet, of which more than a million species have been identified. Estimates indicate there is still between six to ten times this amount yet to be discovered. With such a wide distribution and diversity, they have inhabited practically every biome on the planet,...
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...
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....
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...
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...
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...
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...
Reptiles and amphibians belong to the group of vertebrate animals, more specifically, tetrapod animals. Tetrapod is a term to describe animals that use four limbs to move or to manipulate things. Reptiles were the first truly terrestrial vertebrates, while amphibians are a group with transient traits between...
We too often rank animals by speed or certain abilities without giving them the correct context. Some animals may be faster than others, but this is only because they have needed to adapt in the way they have. What is more important and more interesting is looking at how and why animals do the things...
The diversity of birds is incredibly vast, so it is interesting to wonder why some stand out in the public imagination. The swan is a bird which has come to have great significance for many cultures, its white plumage and graceful appearance making it a common wonder. However, many of us might not even know...
Slugs are animals belonging to the phylum Mollusca, a very large group of invertebrates which also includes animals as diverse as clams and octopuses. With such diversity, classifying these invertebrates is no easy task. It takes years of research and reviewing to define them taxonomically. Even when...