Animals

Tigers hunt prey no matter its size.

European mole crickets build a complex system of tunnels that they inhabit throughout the year.

The functions of the brain in earthworms are performed by the periaesophageal ganglion, which in ringworms is divided into supraesophageal and subesophageal ganglia. These ganglia are interconnected and form the periaesophageal ring.

The strangest of all parasitic crustaceans is Cymothoa exigua, which attacks fish and takes up residence in their mouth.

They form pairs in autumn.

Pteranodon currently contains two species, Pteranodon longiceps, and Pteranodon sternbergi.

Martens have a perfectly developed sense of sight, smell and hearing.

Southern cassowary is most common of three cassowary species alive.

They are predatory and often hunt from concealment.

There are around 220 species of stingrays, which are organized in 29 genera.