Built for survival
It might be simple, but the tardigrade’s tiny body is the perfect survival pod
Tardigrades sense their environment with small, five-cell eyespots and sensitive filaments called cirri.
A sucking pharynx extracts fluid from food and sends it to the simple digestive system.
Sharp structures called stylets in the tubular mouth pierce invertebrates, plants cells and algae during feeding.
Tardigrades have no blood or respiratory organs. Instead, gas exchange occurs across the surface of the body.
Three pairs of legs are used for locomotion, while the pair at the back is used to cling to surfaces.
single sex organ
Males and females each have a single gonad with an opening through which cells are released for external fertilisation.