What Causes Extinction?

A look at the main causes of extinction from new diseases to climate change to competition from another species. Biology - Adaptation And Evolution - Learning Points. Extinction is a natural part of the evolutionary cycle. It occurs more often than we think, making way for new species and allowing others to flourish. Causes of extinction include new predators, climate change, habitat loss, competition and disease. Mankind now poses the biggest threat, and 40% of species could become extinct. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.