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The action or process of classifying something according to shared qualities or characteristics.
Homologous structures
Having similar structure and anatomical position (but not necessarily the same function) in different organisms suggesting a common ancestry or evolutionary origin (e.g. wings of bats and arms of humans are homologous).
In classification: A system of groups where the top group is the biggest. On the next level of the hierarchy the top group is the subdivided into small groups and so on. None of the groups on each level overlap.
The evolutionary history of a group of organisms, especially as depicted in a family tree.
The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
A group of similar organisms that can breed together to produce fertile offspring
The bodily structure of an organism.
Comparative Anatomy
The investigation and comparison of the structures of different animals.
DNA hybridisation
The process of joining two complementary strands of DNA or one each of DNA and RNA to form a double- stranded molecule.
Genetic comparison
Looking at the similarities and difference between different organisms using the DNA sequence
Immunological comparison
Looking at the similarities and difference between different organisms using immunological (antibodies mainly) techniques
Courtship behaviour
Courtship behavior is a behavior in which males and females of the same species prepare for mating.
Ritualised Courtship
Courtship behaviour that follows a set sequence or pattern
Ecological niche
Describes how an organism fits into its environment. It describes what the species is like, where it occurs, how it behaves, its interactions with other species and how it responds to its environment
Gene pool
The total number of alleles in a particular population at a specific time
Artificial selection
Breeding of organisms by human selection of parents/gametes in order to perpetuate certain characteristics and/or eliminate others
Binomial system
A system of naming living things using two latin words - the genus name and the specific name
Generic name
The genus name which is the first name in the binomial system represented by having a capital letter