The 50 million year old fossil of a cocoon of a mysterious worm shows evidence of its sperm intact within it. This happens to be the oldest sperm sample on the planet. It is an exciting find alright....
World’s Oldest Animal Sperm Found
The 50 million year old fossil of a cocoon of a mysterious worm shows evidence of its sperm intact within it. This happens to be the oldest sperm sample on the planet. It is an exciting find alright....