Is the rate of evolutionary change gradual or rapid? This screencast explores the Darwinian rate of gradualism vs. salvationism, or punctuated equilibrium. The two are not mutually exclusive.

Examples of altruism and reciprocal altruism, plus mechanisms of kin recognition.

Examples of altruism, cooperation, kin selection, and animal hybrids.

A discussion about 3 units of natural selection: Individual (Darwinian), Genic, and Group Selection, and how Group Selection is not necessarily inconsistent with Individual Selection.

Evolution's scorecard in terms of its coverage in schools in the United States. Also, a brief look at how creationism may have played a role in undermining the public's understanding of evolution. Finally, a look at

Darwin's "missing evidence"—industrial melanism.

The distinction between innate and instinctive behavior. Also, an examination of fixed action patterns, consummatory acts, action-specific energy, and Konrad Lorenz’s model of instinctive behavior.

Examples across a wide range of species of threat displays, courtship displays, distraction displays, appeasement displays, intention movements, vacuum activity, displacement activity, redirected activity, and simultaneous & successive ambivalent behaviors.

Sir Julian Huxley's concept of ritualization describing 3 mechanisms by which non-communicative behaviors evolve into displays that take on communicative functions.

Ethograms, sign stimuli, configurational sign stimuli, releasers, supernormal stimuli, and innate releasing mechanisms.

An examination of animal welfare and animal rights, including regulations, alternatives, and illegal activities by extremists.