Speciation refers to the process where a single species diverges into two or more separate species.
Key condition: reproductive isolation, i.e., when populations of a species are unable to interbreed.
Analogy: Think of speciation as a branching tree - what was once a single trunk (species) gives rise to multiple branches (new species) over time.
Allopatric vs. sympatric speciation
Allopatric speciation: Occurs when populations are geographically separated. The word 'allopatric' means "different homelands". It's like having two siblings living in different countries - they grow up experiencing different cultures, thus developing unique traits over time.
Sympatric speciation: Occurs within the same geographical area where populations diverge while living together. 'Sympatric' means "same homeland". Think of two roommates who live together but develop different hobbies and routines - eventually they may become so different that they don't interact much.
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Speciation refers to the process where a single species diverges into two or more separate species.
Key condition: reproductive isolation, i.e., when populations of a species are unable to interbreed.
Analogy: Think of speciation as a branching tree - what was once a single trunk (species) gives rise to multiple branches (new species) over time.
Allopatric vs. sympatric speciation
Allopatric speciation: Occurs when populations are geographically separated. The word 'allopatric' means "different homelands". It's like having two siblings living in different countries - they grow up experiencing different cultures, thus developing unique traits over time.
Sympatric speciation: Occurs within the same geographical area where populations diverge while living together. 'Sympatric' means "same homeland". Think of two roommates who live together but develop different hobbies and routines - eventually they may become so different that they don't interact much.
Unlock the Full Content!
Dive deeper and gain exclusive access to premium files of Biology SL. Subscribe now and get closer to that 45 🌟