Current Examples of direction selection in ecology

1. The gradual increase in size of a modern horse with change in environment from forest-like [which required penetration of thicket] condition to grass land [which required escape from the predator] conditions.
2. Industrial melanism; the gradual increase in darkened peppered moth with increasing pollution that accompanied the industrial revolution in UK. Which enabled darkened form to hide easily on blacked walls and tree trunks.
3. Emergence of bacteria and insects resistant to chemicals following prolonged indiscriminate use of antibiotic and pesticides
4. Increase in proportion of mammals with long fur when the average environment temperature decreases to increase insulation of the animal or increase in proportion of mammal with short fur when the average environmental temperature increases.

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Dr. Bbosa Science