There are a number of other videos and resources related to this topic on Khan Academy.
This video resource examines the 5 known mass extinction events in Earth's history and the hypotheses on what caused those events. Some scientists now propose that Earth is facing a 6th mass extinction event caused my anthropogenic climate change. This resource is recommended for teaching.
LS2: Ecosystems: Interactions, Energy, and Dynamics
HS.LS2.2 Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.
HS.LS2.6 Evaluate claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.
LS4: Biological Evolution: Unity and Diversity
HS.LS4.2 Construct an explanation based on evidence that the process of evolution primarily results from four factors: (1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.
HS.LS4.5 Evaluate the evidence supporting claims that changes in environmental conditions may result in (1) increases in the number of individuals of some species, (2) the emergence of new species over time, and (3) the extinction of other species.