TOPIC
3 Stories Published
evolution
Open Questions
17m
Why Does Sex Exist? The Twofold Cost and the Case for Sex
Asexual females should outbreed sexual ones two to one, yet sex dominates complex life. This article weighs the evidence for the leading…
Science
11m
Is Evolution Random? Selection, Mutation and Drift Explained
Evolution mixes a blind step, a directed step and a chance step. Here is how mutation, natural selection and genetic drift fit…
Science
11m
The Cambrian Explosion: What Happened and Why It Matters
Around 539 million years ago, most major animal groups appear in the fossil record. Here is what was found, what came before,…