Examlex
At his stop in Tierra del Fuego,Charles Darwin recognized that
Biological Species Concept
A definition of species based on the ability of individuals to interbreed and produce fertile offspring, emphasizing reproductive isolation from other groups.
Phylogenetic Species Concept
A definition of species according to their evolutionary history and ancestry, identifying species as the smallest group of individuals that share a common ancestor and thus form one branch on the tree of life.
General Lineage
An evolutionary framework understanding species as entities within a continuous tree of life, with each species having a unique lineage in the context of evolution.
Polar Bears
Marine mammals belonging to the bear family, Ursidae, native to the Arctic region, known for their thick white fur, large size, and dependence on sea ice for hunting.
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