An extinct group of Cephalopoda, with solid external skeletons. They are excellent index fossils.
A species of mollusc widespread in freshwaters.
The anatomy of annelids is demonstrated through the example of the common earthworm.
Several analogous types of eyes have developed independently through convergent evolution.
This animation demonstrates the anatomy of spiders through the example of a common European species.
Jellyfish are free-swimming marine animals, a species of Cnidaria, the most ancient group of Eumetazoans.
Larvae of this type of mayflies spend the first three years of their lives in water, their adult lives last for only one day which they use for mating.
The Northern white-breasted hedgehog rolls into a ball to protect itself.
One of the most common types of flatworms.
While the density of spider silk is less than that of nylon filaments, its tensile strength is greater than that of steel.
The most ancient group of animals, they live underwater, lack real tissues and body symmetry.
With the example of the stag beetle we demonstrate how insects' muscles function, how insects fly and how they reproduce.