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A mammal with features typical of reptiles: it lays eggs and has a cloaca.
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...
Learning about the geographic location, capitals and flags of the world´s countries through exercises in three levels of difficulty.
Due to its design and location, the Opera House of the Australian city is one of the most extraordinary opera houses in the world.
A game about sights around the world.
James Cook's legendary journey around the world proved to be enormously valuable for science.
The dentition of different species of mammals reflect their feeding habits.
During the evolution of vertebrates the relative development of brain areas has changed.
The largest land mammal on Earth.
The dromedary is an indispensable animal for inhabitants of the deserts.
A prehistoric amphibian and an early representative of the Tetrapods, which became extinct 360 million years ago.
Red deer are even-toed ungulates, ruminants. Their males have spectacular antlers.
A transitional form between fish and tetrapods, or four-limbed vertebrates.