Examlex
Structural adjustment policies in Africa often led to a decrease in the social services provided by governments to their citizens.
Adaptive Radiation
The evolution of a large number of related species from an unspecialized ancestral organism.
Kaibab Squirrels
A species of squirrel that is native to the North Rim of the Grand Canyon in the United States, known for its distinctive tufted ears.
Abert Squirrels
A species of tree squirrel named for Colonel John James Abert, noted for their distinctive ear tufts and dependence on ponderosa pine trees for habitat and food.
Prezygotic Barriers
Reproductive isolating mechanisms that occur before the fertilization of the egg, such as geographical, temporal, or behavioral differences that prevent species from mating.
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