Creature that lived more than 555 million years ago is the ‘oldest ancestor of all living creatures’
A worm-like creature that lived more than half a billion years ago has been discovered which is the ancestor for almost all living creatures. The creature, called Ikaria wariootia, lived around 555 million years ago and was found in Australia. It is the earliest known bilaterian, a creature with both a front and back, two symmetrical sides … Read more