Cardinal Tetra The cardinal tetra is a small South American fish known for its iridescent blue stripe and bright red body band. 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
Australian tree frogs: New scientific names A 2025 revision changed the scientific names of many Australian tree frogs. The former Litoria caerulea appears as Pelodryas caerulea in the new classification. Read more