The crayfish are widely accepted as very sensitive and fast bio-indicators of changes in water quality.

Global research shows that treated municipal wastewaters still contain some xenobiotics.

A team of Czech scientists discovered the first cave crayfish in New Guinea and in the Southern Hemisphere.

Fast urbanization and improper waste treatment become question of concern in terms of the environment.

Eleven psychoactive pharmaceuticals including antidepressants were found in trouts from recipients of wastewater treatment effluents

3-D reconstruction of a live cell using the new technology Credit: Dr Renata Rychtáriková

Vertebrates are characterized by formation of outer surface by a sheath of cells called ectoderm, while the inner lining of the primitive gut is made from endoderm.

Caviar is a high cost delicacy consisting of salt-cured fish-eggs of the sturgeon family. Natural populations of sturgeon have declined during the past century through poaching for caviar, water pollution, and habitat degradation, making them currently the world’s most endangered group of species.