A Precambrian sponge and some Ordovician arthropods have stories to tell. Will they put Darwin’s Doubt in doubt?
Science media are excited about a new “spiky monster worm” from China, named Collinsium ciliosum.
Attempts to find a Cambrian fuse in the Ediacaran animals are less than convincing.
Let’s take a look at the three “strong and persistent evolutionary forces” that they say caused the Cambrian explosion.
Are "evolutionary novelties" in the lizard family derivable from a simpler chordate in the Cambrian?