Modern humans have been in the making for over 500 million years.
Back then, vertebrates (animals with a spinal cord or backbone) were the new kids on Earth. Over a long, long time, those early vertebrates gradually evolved into the wildly diverse species with backbones we see all over the world today, including humans.
This animation on Hashem AL-ghalili's YouTube Channel, using graphics adopted from a Dutch picture book, starts with modern humans and condenses the 550 million years of evolution from our earliest ancestors into less than a minute.
The first part, depicting humans evolving from great apes, looks pretty familiar:
Rewinding again, the animation shows acanthostega coming from lobe-finned fish called sarcopterygii (that had fins with bones and muscles). The rapid backwards journey ends with two little wriggling worms, representing the first existing animals.
It's all a reminder that humans have had a long odyssey to get where we are today.
Watch the whole, continuous story of how we got here: