Important Notes: Our ecology text is located on the Codon Learning platform. You will need to sign up and enroll in the Codon course so that assessments you complete will be attributed to you. Launch Codon Learning by clicking the link from our Moodle page. Launching from Moodle will create your Codon Learning account automatically. You will not need to reset or remember a password. Visit the Course Access tab to purchase your subscription, which costs $40. You have free access to Codon Learning for 21 days until you need to pay for the subscription using a credit card or enter an access code that you purchased from the bookstore.