The axolotl, also known as Mexican salamander, is an amphibian species that keeps its gills even in adulthood.
axolotl, amphibian, amphibians, endangered species, Caudata, Aztec, Mexico, neoteny, regeneration, wild animal, aquatic lifestyle, gill, predator, aquatic habitat, lung, water pollution, animal, vertebrates, biology, living organism
This animation demonstrates the anatomy of amphibians through the example of a common species of frogs.
The animation shows the anatomy of turtles.
A transitional form between fish and tetrapods, or four-limbed vertebrates.
A prehistoric amphibian and an early representative of the Tetrapods, which became extinct 360 million years ago.
One of the best known species of spiders, often kept as pets. Its bite is not fatal for humans.
The life cycle of vertebrates starts with the production of the reproductive cells of an individual and ends with the production of the reproductive cells...
The Aztec Empire was a despotic, militaristic state.
The magnificent capital of the Aztec Empire astonished even the Spanish Conquistadors.
Majestic even in its ruins, this city was the largest and most populous settlement in the pre-Columbian Americas.