How Apple Flies Changed the Way We Think of Evolution

The video explores the concept of speciation, the process by which one species splits into two or more distinct species. It introduces two main types: allopatric speciation, which occurs due to physical barriers, and sympatric speciation, which happens without such barriers. Examples include squirrels in the Grand Canyon and apple maggot flies. The video also discusses the controversy surrounding sympatric speciation and its specific conditions, highlighting the ongoing nature of evolution.

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