| by Chaz Ebert and Brian Tallerico
Gerardo Valero tackles the latest "Star Wars" film.
You see the siege mentality not just among evangelical Christians but also among the campus social justice warriors and the gun lobbyists, in North Korea and Iran, and in the populist movements across Europe.
On two excellent Criterion releases of classic horror films.
Peaks on the landscape correspond to genotypic frequencies at which the average fitness is high, valleys to genotypic frequencies at which the average fitness is low.
The basic structural and functional unit of most living organisms.
He is a current member and Web writer for the Evolution and Nature of Science Institute (ENSI).
Plant life; often used to distinguish from animal life ("fauna").
These invertebrates are very common in the global ocean, and their distinctive, chambered shells are common in the fossil record as far back as 550 million years.
Cell size varies, but most cells are microscopic.
New techniques have also revealed the existence of cellular and molecular fossils.
The loss of genetic variation when a new colony is formed by a very small number of individuals from a larger population.
Selection in which the of a (or ) depends on its frequency in the population.
A group of organisms comprising the kingdom Fungi, which includes molds and mushrooms.
Any recognizable trait, feature, or property of an organism.
(2) In , species are described as "fixed" in the sense that they are believed not to change their form, or appearance, through time.
A retired high school biology teacher and co-founder of the Santa Clara County Biotechnology-Education Partnership, which provides teacher training and lab equipment for local schools.