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WHY ELEPHANTS NEVER FORGETS ? :- It's a not unexpected saying that elephants always remember, and that is why these great creatures are more than just monster strolling on our planet earth. The more we find out with regards to elephants, the more apparently their amazing memory is just a single part of an extraordinary insight that makes them probably the most friendly, innovative, and generous animals on the planet.

1.Herdmania : Metamorphosis : Tadpole Larva 2.Herdmania :- Neural Complex 3.Herdmania :- Various Spicules

Vertebral Column Notochord In all chordate embryos, the first axial endoskeleton to appear is a slender, stiff, unsegmented, gelatinous rod, the notochord. It is present below the nerve cord and…

TYPES OF FEET IN BIRDS​ :- The feet of birds are also modified variously in accordance with the character of the environment and the manner of locomotion.

TYPES OF BEAKS IN BIRDS​ :- The entire modem avian world is characterized by the absence of teeth. The upper and lower jaw bones become elongated to form a peculiar beak or bill covered by a horny sheath called as rhamphotheca

Birds (Class aves) are the best known and most easily recognized of all animals. Birds have mixed with mankind in every aspect of life. They are unique in having feathers for flying which also cloth and insulate their bodies to make possible a regulated body temperature.

Class Mammalia are the highest group in the animal kingdom, comprising moles, bats, rodents, cats, monkeys, whales, horses, deer, elephants and other animals

Class Reptilia includes the turtles and tortoises (order Chelonia), lizards and snakes (order Squamata), crocodiles and alligators (order Crocodilia) and tuatara (order Rhynchocephalia). These represent only 4 of the 16 orders that lived and flourished in Mesozoic era.

Class Amphibians mainly live in water or damp places; none in salt water. They are the commonest in moist temperate regions but some are tropical; one frog ranges into Arctic circle and tree frogs occur above 400 meters in Sierra Nevada of California.

classifciation of SUPER CLASS PISCES (FISHES) ​, characterstics of SUPER CLASS PISCES (FISHES) ​

The Phylum urochordata are commonly known as sea squirts. Aristotle (384-322 B.C.) described a simple ascidian and called it Tethym. The adults do not have notochord and the body is covered with the test containing branchial and atrial openings.

Phylum Hemichordata are small soft-bodied creatures, living singly or in group on sandy and muddy sea bottoms or in open water. The body and coelom are divided into three regions with paired gill-slits and nervous tissue in both dorsal and ventral epidermis.

Phylum Arthropoda were first to have hard exoskeleton made of chitin, a nitrogenous polysaccharide made of hexoses some of which contained amino or acetyl groups and jointed appendages.

Phylum Echinodermata are defined as spiny skined animals (Greek word echinos = spiny; derma = skin).

Phylum Mollusca are successfully living since Cambrian time. Presently 500,000 living species besides fossils. For the fIrst time molluscs have acquired hard shell for protection. They are all free-living in fresh water, brackish water and sea water. Clams, oysters, squids serve as human food.

Phylum Annelida are truly coelomate animals with metameric segmentation. Capacious coelom and its divisions by septa into separate water tight compartments gives much greater control in the use of the hydrostatic skeleton so that changes in shape, shortening, lengthening or bending can be achieved in one segment without unduly influencing the adjacent segments.

Phylum platyhelminthes are the only group of animals having no extinct form and having successful genetic continuity of their population. The word 'parasite' is often added after 'Helminth' but vast animals belonging to this group are free-living.

Phylum coelenterata are full of natural beauties. They are all aquatic but chiefly marine, attached or pelagic. Originating from lower Cambrian, they are still flourishing and comprise about 10,000 species. Coelenterates are the first animals to have tissues.

PHYLUM CHORDATA (Greek-: chorda, a string, or Latin -: chordatus, a chord, i.e., the notochord) is the largest of the deuterostome phyla. It is the highest and the most important…

LARGEST, HEAVIEST, FASTEST, SMALLEST FISHES​

Sponges belonging to phylum Porifera (L. Porus, pores+jerre, to bear) are sessile organisms with a low degree of individuality and cellular organisation. Sponges appear like plants being sessile and attached to rocks, shells and other solid objects.

MOST VENOMOUS ANIMALS IN WORLD

What are the apex predators of the insect world? Answer written by :- Sergio Diniz There is one type of insect that can defeat any other insect, thus I believe…