or log in
The axolotl, also known as Mexican salamander, is an amphibian species that keeps its gills even...
A species of snake widespread in Europe and Asia.
One of the best known species of spiders, often kept as pets. Its bite is not fatal for humans.
A monogamous species of ape living on the trees.
This animation demonstrates the anatomy of birds through the example of mallards.
Many freshwater fishes are also popular as food.
The animation demonstrates the most important types of feathers and their fine structure.
Gradual metamorphosis, incomplete and complete metamorposis are common among insects.