Tag: epithelial tissue
Complex Specified Information in the Lowly Sponge
Sponges are outliers in biology’s big bang, the Cambrian explosion. Their embryos appear in Precambrian strata, leading some to consider them primitive.
Eyes in a Twinkling?
In 1991, Richard Dawkins gave a lecture arguing that natural selection can produce complex and seemingly improbable features by an accumulation of small, incremental steps.