Why Do Giraffes Have Patches? - a podcast by Smithsonian Channel

The dark patches on a giraffe's body hide an intricate network of blood vessels and glands. These allow blood to flow through them, releasing heat and cooling the body.

The latest in science, culture, and history from Smithsonian Channel.

Further episodes of Smithsonian Channel Pick of the Week

Further podcasts by Smithsonian Channel

Website of Smithsonian Channel