Breeding strategies differ both among males and females of the same species as well as among different species. The difference in breeding strategies among members of the same species can usually be linked to frequency dependence. If the species is at evolutionary equilibrium, the relative fitnesses of these different strategies will be identical. Differing strategies have been found at the level of the gamete as well as at the level of different organisms and species.
Celebrating Science & Humanity
Darwin Day is a global celebration of science and reason held on or around Feb. 12, the birthday anniversary of evolutionary biologist Charles Darwin.
On this website you can find all sorts of information about Charles Darwin and the International Darwin Day Foundation. If you are hosting a Darwin Day event, you can post information about it on our events listing. You can also locate Darwin Day programs near you by searching our events section.
We also have resources for hosting Darwin Day events, including promotional support and a list of potential Darwin Day presenters.
Click here to read more about the history of the International Darwin Day Foundation.
Darwin Day News
The Palouse Coalition of Reason and AHA teamed up to bring three speakers to the area.
News 12 Connecticut covered a Darwin Day celebration thrown by the Southern Connecticut Darwin Day Committee in Norwalk, CT.
San Diego joins a growing list of cities that have officially recognized the birthday of the father of evolutionary biology, Charles Darwin. Mayor Bob Filner issued the proclamation.
Mating systems and parental care vary tremendously from species to species. Every species differs in how it protects its young from predators and provides its young with food, if it does so at all. The physical environment as well as behavioral dynamics in intra-species relationships all influence parental care. Often the mating system, which sex is dominant in mating, and whether fertilization is external or internal will determine much of the process of parental care.
Originally, altruism and self-sacrifice were thought to be incompatible with natural selection, even by Darwin. Now we have several explanations for how altruism can increase an individual…
Discussion Topics for Your Darwin Day Event
Ideas for your local Darwin Day Event