The transformation of forelimbs into wings is duly compensated by the presence of beak or bill used for feeding, nest building, preening, and offence and defence. ii. To make their bodies lighter in weight so that they can fly easily. The definition of aerial is simply that something is air born. Flying animals (birds, bats,) have an extremely light and strong skeleton. Example whales and Dolphins. 6. Endoskeleton of birds thus contains the following characteristics: (i) The skull bones are paper-like thin and show a tendency towards the reduction in their number. The neck in birds is also very long and flexible for the movement of head necessary for various functions. In Canada, we find minuscule burrowing shrews, gigantic whales cruising the oceans and bats capable of perilous aerial acrobatics. They also assist in steering, lifting and counterbalancing during flying and perching. WATCH THE VIDEO BELOW TO SEE HOW BIRDS ADAPT TO FLYING. The wings are depressed by large muscles, pectoralis major and elevated by pectoralis minor. Which of the following colours will best suit a chameleon to hide from its enemies in a forest when it sits on branch of a tree? The bones are hollow and spongy. Further, insertion of air sacs in between the flight muscles like pads reduces mechanical friction and increases the mobility in muscular action. The arched clavicles fused with interclavicle and powerful pillar-like coracoids of pectoral girdle are well suited to resist the inward pressure of the down-stroke. Eg. Most birds possess following important flight or volant adaptations: Because speed is a must for aerial life, so, to minimise the resistance offered by air during flight, the body of birds is fusiform or spindle-shaped and it lacks any extra projection which may offer resistance in the attainment of speed in air like fish in the water. What are aerial animals? The most significant animal adaptations entirely depend on the type of habitats they are found in. The mouth is drawn out into a horny beak which acts as a pair of forceps in picking up the things and in various other activities such as nest building, pruning, etc., which are normally done by forelimbs in other animals. Task 1. Some water birds like the duck have webbed feet or paddle like flippers as in turtles. Task1- hawk,crowTask2-yes,most of the insects are aerial because they can fly most of the time in air for that they have special features like wigs,light body and antina. (v) Sternum or breast bone is expanded having a median ridge or keel for the attachment of major flight muscles in flying birds, while it is without a keel in running birds, like ostrich. (b) The feathery covering makes the body light and at the same time protects from the hazards of environmental temperature. Bugs, mosquitoes and leeches. Aerial is a word related to air.What are the special body parts aerial animals have? Compact Body:. With the exertion of the pull, the toes are bent spontaneously around the perch. This helps in driving the bird forwards and upwards during flight. Some animals display the ability to camouflage while others have interesting defense mechanisms that protect them from predators. We know animals are classified according to their habitats as terrestrial (living on land), aquatic (living in water), amphibians (living on both land and water), arboreal (living on trees) and aerial (flying animals). The basic feature of this adaptation is to acquire speed. Worksheet on adaptation in animals contains various types of questions. (viii) The skeleton of forelimbs is completely modified for the attachment of feathers (remiges) and flight muscles. Scavengers play a very important role in cleaning the environment. The muscle fibres comprising the flight muscles are of striated type and well vascularised to withstand fatigueless after prolonged activity. The blue whale is the largest animal in the world. Arctic foxes use camouflage for both hunting and hiding. For this reason birds are called warm-blooded or homeothermal animals. The adaptation of animals and plants to their environment is a series of varied biological processes with varying purposes, but the general purpose is the continued survival of the species. The ill-development of rectum of flying birds indicates towards the fact that the flying animals cannot afford to bear the weight of faeces. The adaptational characters of aerial animals are as follows: Body is streamlined, which reduces the air resistance during flying. In the spider monkey and crested gecko, the tip of the tail has either a bare patch or adhesive pad, which provide increased friction. 1. The body is covered with feathers. The octopus, shark, whale, starfish are all aquatic animals. (c) The feathers hold a considerable blanket of enveloping air around the body and add much to its buoyancy. The air sacs help in regulating body temperature by internal perspiration. Arboreal and aerial locomotion Climbing. Thus, it becomes evident that birds are fully developed for terrestrial, arboreal and aerial environments. Truly powered flight can only be achieved by birds, bats and insects. When the bird settles on the branch of a tree, the legs are bent and put the flexor tendons on the stretch. The absence of gall bladder in birds minimises the bodyweight to some extent. Their compact body is light and strong dorsally and heavy ventrally which helps in maintaining equilibrium in the air. Good morning sir, I am Kartik Sharma 4 D . Sense of smell is poorly developed corresponding the ill-development of olfactory lobes. Bone marrow is lacking in bones of birds. 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