First animals developed complex ecosystems before the Cambrian explosion: Metacommunity analysis suggests succession, not mass extinction, explains Ediacaran diversity drop - Science Daily

Early animals formed complex ecological communities more than 550 million years ago, setting the evolutionary stage for the Cambrian explosion, according to a new study.

Early animals formed complex ecological communities more than 550 million years ago, setting the evolutionary stage for the Cambrian explosion, according to a study by Rebecca Eden, Emily Mitchell, a… [+2070 chars]

full article...