Monsters of the Palaeozoic: sea scorpions
Eurypterids are an extinct group of Palaeozoic aquatic arthropods.
Red deer are even-toed ungulates, ruminants. Their males have spectacular antlers.
A video about the mammals living in the cold climate zones of the Earth, like the polar bear,...
A video about a pink wading bird with an arcuate bill. Its peculiarity is that it sleeps...
Several analogous types of eyes have developed independently through convergent evolution.
A prehistoric flying reptile, similar to birds. However, there is no direct evolutionary...
Penguins are birds living in the Antarctic and adapted to cold temperature and swimming.
King of the savannahs, the lion is at top of its food chain. Its only enemy is man.
One of the most common types of flatworms.