Leopard tortoise size: How big can it grow? The leopard tortoise is one of Africa’s largest land tortoises, with a shell length that can reach up to 70 cm. 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
The master of regeneration Mexican axolotl regeneration allows this unique amphibian to regrow lost body parts and repair certain damaged tissues. Read more
