Animal Facts & Diet [Animal Species] Types, Habitat, Reproduction, Animals as a pet and many more informative study about animals is right here for those who want to take the detailed look on Animal Species.
Animal (Kingdom Animalia) has the multicellular eukaryotic organisms. Animals are differing from the members of the two other kingdoms of multicellular eukaryotes, the plants and the fungi (mycota) in fundamental variations in physiology and morphology. This is large because animals have developed muscles and hence mobility, a characteristic has stimulated the further development of organ systems and tissues. Animals dominate the human conceptions of life not only by their size, abundance, and sheer diversity but also by their mobility.
Animals move in the search of food mates and save themselves from predators. This movement attracts attention and interest, particularly as it becomes apparent that the behavior of some creatures is not so different from human behavior.
Types of Animals
Animals have complex and multicellular organisms equipped with nervous systems and have the ability to search food and capture their food. It can be divided into six broad categories. Here we discuss the simplest (invertebrates) to the most complex (mammals).
Billions of years ago, the animals are evolving that are characterized by their lack of backbones and internal skeletons as well as their relatively simple anatomy and behavior as compared to most vertebrates. Invertebrates account for a whopping 97% of all animal species as this vastly varied group includes insects, worms, sponges, arthropods, octopuses, mollusks, and countless other families.
The first truly vertebrates on earth, fish developed from the invertebrate ancestors about 500 million years ago. The fish have dominated the world’s oceans, lakes, and rivers ever since. There are three types of fish which are bony fish, cartilaginous fish and jawless fish. The fish have the gills on either on their head which helps them to breaths under water and are equipped with lateral lines that detect water currents and even electricity.
They quickly became the dominant vertebrates on earth when the first amphibians developed from their tetrapod forefathers, 400 million years ago. However their region wasn’t destined to last; the frogs, salamanders, toads, and caecilians that make up this group have long since been out-competed by reptiles, mammals, and birds. Amphibians are characterized by their semi-aquatic lifestyles as they have to stay near to the bodies of water to maintain the moisture of their skin and to lay their eggs. Today, they are among the most endangered animals on earth.
Inform of dinosaurs, reptiles ruled the earth for over 150 million years. Like amphibians, reptiles make up a fairly small proportion of terrestrial animals. There are four basic types of reptiles: Alligators, Crocodiles, turtles and tortoises, snakes, and lizards. Reptiles have the cold-blooded metabolism – they get the warmth for their bodies from the sun. They have the scaly skin, and their leathery eggs, which unlike the Amphibians; they can lay some distance away from bodies of water.
During the Mesozoic Era, Birds are developed from dinosaurs, not once, but probably multiple times. Today, birds have the more than 10,000 species spread across 30 separate orders. Birds are characterized by their warm blood metabolisms, memorable songs, coats of feathers, and their ability to adapt to a wide range of habitats. For example – Ostriches of the Australian plains and the penguins of the Antarctic Coastline.
It is natural and correct to consider mammals the peak of development after all humans are also mammals. The mammals are among the least diverse animal groups – there are only about 5,000 species only. Mammals are characterized by their hair and fur which all species possess during some stage of their life cycles, the milk that they feed to their young, and the warm blood metabolism as the birds have. It allows them to inhabit in a wide range of habitats ranging from deserts to oceans to arctic tundra.
Interesting Animal Facts
Here are few facts of animals that you hardly know:
- The Shrimp has the heart on its head.
- A snail can sleep for three years.
- The fingerprints of a Koala are so similar from humans that are so indistinguishable.
- Elephants are the only animal that not able to jump.
- The rhinoceros’ horn is made up of hair.
- It takes a sloth two weeks to digest its food.
- Almost three percent ice in Antarctic glaciers is penguin urine.
- A cow gives nearly 200,000 glasses of milk in their lifespan.
- Bats always turn left when they leave a cave.
- Giraffes have no vocal cords.
- Kangaroos can’t fart.
- An Ostrich has bigger eye than its brain.
- Frogs cannot vomit. If they have to, then it will vomit its entire stomach.
Characteristics of Animals
Let’s explore the characteristics of animals over here:
If you try distinguishing true animal form assume, a paramecium or an amoeba, it is not hard. As per definition, Animals are multicellular creatures through the number of cells and a tissue greatly varies across species. However, you have to don’t forget that animals aren’t the only multicellular organisms; that specialty also shared by plants, fungi, and even some species of algae.
Eukaryotic Cell Structure
The most important split in the history of life on the earth is the one between eukaryotic cells and prokaryotic cells. Eukaryotic Cells have well-defined nuclei and internal organelles, and are capable of grouping together to form multicellular organisms. Whereas prokaryotic organisms lack membrane-bounded nuclei and other organelles, which are exclusively single-celled for example – all bacteria are prokaryotic. While all animals are eukaryotic, but it is not necessary all eukaryotes are animals. This hugely diverse family also includes fungi, plants, and tiny marine proto-animals also known as the protists.
Motility (Ability to Move)
All animals capable of movements at some stages in their lifespan as like as fish swim, birds fly, wolves run, snails slide, and snakes slither. It allows these organisms to movements and conquers new ecological niches, pursue prey and evade predators. This is one of the key specialties that distinguish animals from plants and fungi.
Heterotrophy (Ability to Ingest Food)
All living things need organic carbon for their growth, development, and reproduction. There are two methods to get the carbon – From nature in the form of carbon dioxide and freely available gas in the atmosphere or by feeding on other carbon-rich organisms. Living organisms that obtain the carbon from the atmosphere like plants are called autotrophs, while the living organisms that obtain carbon by ingesting other living organisms like animals are called heterotrophs.
A habitat is a specific place or environment which is familiar with the species to develop and their growth. Most of the animals adopt a special habitat and can’t live in the other type habitat. Here are several specific climates in which adapted by the specific species of animals:
Grasslands (Savannas and Prairies)
Grassland is the types of habitat for most of animals and bird species. There are types of grassland habitats exist – Tropical and Temperate. The tropical grassland has animals like lions, giraffes, elephants, zebras, and rhinos in the living area. African savanna is the best example of tropical grassland. Animals like Gazelle, deer, mice, rabbit, and various snakes adapt the temperate grasslands.
The tropical rainforest habitats are divided into several layers or strata from the surface of the soil to the forest canopy.
- Forest floor
- Understory layer
- Canopy layer
- Emergent layer
Animals are also the habitat for the wide range of animals who adapt the environment with little rainfall and little or no vegetation. It is extremely hot and humid weathers. It is impossible to survive last long without water. They have special adaptive features for utilizing the little water available in the habitat range. You can easily see the animals in deserts like rat, Kangaroo, Coyote, Jack rabbit, and various species of lizards are some of the common desert animals.
Mountain habitat can be so harsh with low food availability and very cold climates. Many species of animals adapt this special habitat and develop the special features to survive in such habitat. Example: – mountain lions, bighorn sheep, goats, antelopes, and various species of bear.
There is only 3% fresh water available on the earth. However, only 0.01% of the total freshwater exists in the form of lakes, swamps, and rivers as surface water. Here are a few examples of freshwater habitats:
- Rivers and Streams
- Lakes and Ponds
- Brackish Water
The earth covered by 71% of oceans. The marine life development began approximately 3 billion years before terrestrial life. And there is still a lack of research and information regarding the ocean habitats and their inhabitants.
- Open Ocean
- Coral Reefs
- Deep Ocean
- Hydrothermal Vents
Are Snakes Animals?
No, the snakes belong to the category of the reptiles. The snakes have no legs as they crawl on the surface to move forward. The snakes can’t be in the category of the animals.
There are different types of animals who eat different kinds of food. There are three types of animals – Herbivores, Carnivores, and Omnivores.
Those animals that eat grains, seeds, fruits, and plants are called herbivores and plant eaters. For example – Rabbit, Goat, horse, Giraffe, cow etc. are herbivores.
Those animals that eat worms, insects, and flesh of other animals are called carnivores or flesh eaters. For example – tiger, lion wolf, lizard, kingfisher, snake, crane, hawk etc. are carnivores.