Description This video explores how scientists designed experiments to investigate color vision in jumping spiders. It introduces science practices used in animal behavior research, including how scientists make observations, ask questions, design investigations, analyze evidence, and construct explanations (e.g., about whether color vision helps spiders avoid toxic prey). The “Educator Materials” document includes background information and implementation suggestions. The “Student Worksheet” incorporates concepts and information from the video. The “Resource Google Folder” link directs to a Google Drive folder of resource documents in the Google Docs format. Not all downloadable documents for the resource may be available in this format. The Google Drive folder is set as “View Only”; to save a copy of a document in this folder to your Google Drive, open that document, then select File → “Make a copy.” These documents can be copied, modified, and distributed online following the Terms of Use listed in the “Details” section below, including crediting BioInteractive.