Thus, Peter Grant and graduate student Lisle Gibbs wrote in the science journal Nature in 1987 that they had seen “a reversal in the direction of selection. ”
उदाहरणार्थ, दुष्काळानंतरच्या वर्षांत लहान चोचींच्या फिंच पक्ष्यांची संख्या पुन्हा एकदा वाढलेली आढळली.