The frozen Siberian rotifers aren’t the record holders for the oldest multicellular creatures to be brought back from the dead, though.Gizmodo reports that nematode worms dated to at least ...

Don’t worry—this isn’t a Walking Dead situation. The undead organisms in questions are called bdelloid rotifers, or microscopic “wheel animals” named for their circular mouths surrounded ...

View Full Profile. Learn about our Editorial Policies. Bdelloid rotifers are complex, microscopic animals that live in and near freshwater. Although only about half a millimeter in size, they have a ...

Bdelloid rotifers, microscopic animals found nearly all in freshwater ecosystems worldwide, lack the enzymes that most animals use to silence regions of their genome by attaching chemical tags called ...