Like many farm animals, horses possess all the major attributes that place them into the mammal category. Mammals are a class of animals that share a variety of common characteristics, including the fact that they have mammary glands.
Mammals create milk using their mammary glands and use it to feed their young. Thanks to this ability, mammals form unique bonds with their offspring that animals in other categories do not.
Mammals are all ‘warm-blooded’ animals that also have three bones in their middle ears which allow them to hear sound effectively. Apart from these specific characteristics, mammals also tend to be very intelligent, are often capable of domestication and can communicate in unique and intricate ways.
Female horses also nurse their foals with milk they produce using their own mammary glands. Horses also have coats comprised of hair that comes in a variety of beautiful colors and unique patterns.
Their hair helps to keep them safe from outdoor elements including harsh rain, wind, and extreme temperatures. Horses have 3 middle ear bones called the hammer, anvil and stirrup.
In prehistoric times, most mammal animals served only as a food source for humans. Hunting animals, mainly mammals, was the one of the ways humans survived at the time.
The ability of many mammals to be domesticated helped to turn a hunting and often nomadic way of life into a more settled, agricultural lifestyle. Being a mammal creates a unique bonding experience for animals, especially horses.
The fact that mammals have mammary glands and personally feed their own young creates a maternal bond that begins at birth. While there are rare exceptions, most mares that give birth to a foal will quickly begin to bond with them.
Horses, unlike some mammals, like to keep their babies very close and this begins immediately after they are born. Shortly after birthing a foal, mares will instinctively begin to lick off the amniotic fluid that covers their baby.
The mare will continue to lick, nuzzle and help push their baby to stand up and nurse. This bonding helps to ensure that the foal will continue to have a source of food and protection throughout their young lives.
The horse’s large eyes sit on each side of their head, creating only a couple blind spots but also allowing them to see more of what is around them. Draft horses are most often called cold-bloods due to their calm demeanor and easy-going personalities.
Some racing and competition horse breeds including Arabians and Thoroughbreds can be referred to as hot-bloods. Animals in other categories like fish, reptiles, birds and even amphibians do not get rabies.
Rabies is a frequently fatal disease that rapidly spreads to the animal’s brain and causes damage that cannot be repaired. Thankfully, there are annual vaccines available to keep our domesticated animals, including horses, safe.
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Some 98 percent of the known animal kingdom is made up of invertebrates, with the vertebrates -- mammals, reptiles and bony fish -- comprising the rest. This sea creature that measures between 0.9 to 12 inches in length has a bone structure composed of tiny plates covered by a thin, almost translucent skin, instead of scales like other fish.
Invertebrates are cold-blooded animals that do not have backbones and do not have a skeleton of bone, either internal or external. Marine invertebrates are ocean animals without backbones, including starfish, sponges, jellyfish, corals and anemones. Mollusks have a soft body covered by an outer layer, a mantle.
Mollusks include slugs, snails, squid, octopuses and oysters. Crustaceans are a type of arthropod, meaning they have jointed legs. Crustaceans include shrimp, crabs, lobsters and barnacles. Worms are invertebrates that don't have legs.
Worms include earthworms, tapeworms and leeches. Spiders, centipedes and scorpions are part of the arthropod phylum, but they are arachnids, not insects, because they have eight legs. You are always only three feet from a spider. Insects make up the largest group of animals in the world, the arthropods.
Invertebrates, from mollusks to butterflies to earthworms to corals, exhibit vast levels of diversion. Water pollution, water projects, and groundwater withdrawal threaten freshwater invertebrates, while deforestation and animal agriculture is also a great factor of invertebrate endangerment or extinction.
The longest invertebrate is the ribbon worm which can grow to 180 feet long. Tiny mites are the fastest animals in the world when it comes to body size.
Octopuses collect bottle caps, attractive stones and other finds from the ocean floor and decorate their dens with them, repositioning an object if it doesn’t seem to suit the design. Spiders are invertebrates but are not considered insects because they only have two main body parts instead of three, eight legs instead of six and no antennae.
Spiders, along with ticks, mites, harvest men and scorpions, are called arachnids. They are also classified into a special group called ranee because they have very slender waists compared to other arachnids.
Some are big enough to prey on larger animals such as mice or small birds. Spider silk is also used to protect their babies, to create shelters and to assist them as they move and reproduce.
Some spiders even build “submarines” that hold air, so they can stay underwater. The webs have three parts: the frame, built first and attached to plants or other objects; the radii, which radiate out from the center like spokes of a bicycle and transmit vibrations from prey; and the catching spiral, the sticky threads that stretch without breaking making it difficult for insects to escape.
Some spiders live in complex communities housing thousands of individuals, building large communal webs, working together to trap prey and sharing the harvest. Planet Earth has a very extensive biodiversity, traditionally classified into taxonomic ranks.
The species of this group are characterized by feeding on plants or other animals and using their sensory organs to interact with what's around them. ‘Animals’, in turn, are classified into multiple lower categories and ranks.
Roughly, we can make the distinction by grouping vertebrate and invertebrate animals. Keep reading this Animalized article to discover the characteristics of both groups, and the animals that belong to each one.
This domain is split into a further five or six ‘kingdoms’: Animalia, Fungi, Plantar, Protista and Monera (which can be spit into Eubacteria and Archaebacteria). Its function is to protect and sustain the spinal cord and connect it to the nervous system.
These animals are distinguished by their bilateral symmetry, and the fact that they have a skull to protect their brain. The bodies of vertebrate animals are divided into head, trunk and limbs, while some species also have a tail.
There are approximately 62,000 animal species that belong to this group, so we have a wide range to choose examples on our list. Some fish and marine animals, for example, have mainly cartilage to support their frame.
Instead, they have a notochord, similar to vertebrae in that it runs the length of their body, but which much more flexible and supple. Examples include turtles which have the bones inside their body, but also have a hard shell which is used for protection.
In fact, it is believed that the carapace (the turtle's shell) is derived purely form endoskeletal ribs . The vertebrae are very important in housing the central nervous system of vertebrates.
This system sends signals up and down the vertebrae to relay messages about movement, pain or any physical response the body might need. If the vertebrae is damaged, then these signals may not be able to transmit, resulting in incapacitation.
Grouping any animal, whether vertebrate or invertebrate, requires a very complicated taxonomic organization. We don't mean this as a slight against their character, but invertebrates are often seen as being not a sophisticated as vertebrate animals.
A common example of an invertebrate with an exoskeleton is a cockroach which is infamous to humans for being resilient. However, these too are very broad groups and there are many types of worms with various body structures.
Our list of vertebrate animals can be categorized into 5 main groups : Mammals, birds, fish, amphibians, and reptiles. Fossil records show examples of extinct vertebrate animals, while new discoveries are being made regularly.
For example, dinosaurs are extinct vertebrates, but they are related to extant reptile species. Instead, we can give a list of the different invertebrate animal groups with examples for each one.
Annelids : Ringed or segmented worms, including earthworms and leeches. Arthropods : Animals with a segmented body, appendages and an exoskeleton, including arachnids like scorpions and spiders, crustaceans like crabs, lobsters and shrimp, and insects like ants, bees, beetles, butterflies, crickets, dragonflies, flies, grasshoppers, mosquitoes, moths, praying mantises and stick insects.
Cnidarian : Aquatic animals made up of a fluid substance, including corals, jellyfish and sea anemones. Mollusks : Terrestrial and aquatic, include bivalves like mussels and oysters, cephalopods such as cuttlefish, squids and octopus and gastropods like slugs and snails.