Cardinal Tetra The cardinal tetra is a small South American fish known for its iridescent blue stripe and bright red body band. Read more
Underwoodisaurus milii: Unusual Defensive Vocalization Underwoodisaurus milii can produce a distinctive, bark-like sound when threatened, helping it defend itself against potential predators. 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