A look into the reasons that some animal populations have dramatically decreased because of loss of habitat and climate change and what it means to be endangered.

Originally released by Bellum Entertainment/Midori Entertainment, 2012. Streaming video file encoded with permission for digital streaming by Infobase on July 11, 2016.

Mass Extinction's Main Cause (3:00); --Largest-Tree Climbing Animals (1:39); -- Endangered Animals? (2:32); -- Rare Animals and Sea Levels (4:12); -- Animal Facts (4:04); -- Conservation Efforts (3:46); -- Funny Animal Voice-overs (1:08); -- Credits: Animal Populations: Animal Atlas (1:15); .