Taxonomical aids are defined as the collection of the prime sources of various species of plants, animals and other organisms, which help in their classification, identification and study of the bio-resources. Biologists worldwide have established certain procedures and techniques that help in collecting and storing the data of specimens of the organisms.
Plant specimens are preserved by drying leaves and pressing them on sheets. These sheets along with specimens and their description are arranged according to universally accepted system of classification and placed in a store house called herbarium. The herbarium sheets carry information like date and place the specimen was collected, English, local and botanical names, family, collector’s name etc. These herbarium sheets provide a quick reference to taxonomical studies.
Botanical gardens are places of live plant specimens. These gardens have living plants specimens and are great aid in studying the plants and their response to environment. In these gardens, the plants and trees are labeled with their scientific name and its family.
Biological museums are collections of plant and animal specimens preserved for study and reference. In museums, specimens are preserved in containers and jars containing preservative chemical solutions. Insects are preserved in insect boxes, where as larger animals like birds and mammals are usually stuffed and preserved. Museums also contain skeletons and fossils of animals.
Zoological parks are places where animals are kept in a protective environment and looked after from other stress like predators etc. In zoological parks, all animals are provided with an environment similar to their natural habitat.