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
The green iguana’s mysterious third eye The green iguana’s third eye detects changes in light and movement, helping it notice predators from above. Read more
Siamese fighting fish: colours, rivalry and remarkable adaptations The spectacular colours and fin shapes of domestic Siamese fighting fish are the result of generations of selective breeding. Read more
