Sponges are outliers in biology’s big bang, the Cambrian explosion. Their embryos appear in Precambrian strata, leading some to consider them primitive.
Charles Darwin conceded that such instincts are “so wonderful” that their origin would strike many as “a difficulty sufficient to overthrow my whole theory.”
If you want to know what scientists themselves think about the current status of evolutionary theory, you have to look behind the curtain.
If Turner is right, the clockwork, mechanistic, DNA-centric model may have met its match.