Mystery of ancient burrows older than earliest animals has been solved
Ancient animal burrows in rocks once thought to be 1.2 billion years old have been re-examined, and were likely made 40 to 50 million years ago by crustaceans
Landwebs
0
15
Ancient animal burrows in rocks once thought to be 1.2 billion years old have been re-examined, and were likely made 40 to 50 million years ago by crustaceans
