Question

what are tardigrades?

Answer 1

Tardigrades are a phylum of water-dwelling, eight-legged, segmented micro-animals. They were first described by the German zoologist Johann August Ephraim Goeze in 1773, who gave them the name of "little water bears". The name Tardigrada was given three years later by the Italian biologist Lazzaro Spallanzani. 

Answer 2

Tardigrades are also known as the water bears.They are said to be the toughest creatures on the planet.
They can survive in the toughest condition even in vacuum....