Cardinal Tetra The cardinal tetra is a small South American fish known for its iridescent blue stripe and bright red body band. Read more
Axolotl neoteny: The secret of the forever young amphibian The axolotl becomes sexually mature while keeping larval features such as external gills and an aquatic lifestyle. Read more
Green Vine Snake Venom: Fangs at the Back of the Mouth The green vine snake (Ahaetulla nasuta) has venom-delivering fangs positioned toward the back of its upper jaw. Read more
