EXTRA-ORGANIC EVOLUTION

Cosmology and Organic Evolution

Stellar Evolution and Large Extra Dimensions

We discuss in detail the information on large extra dimensions which can be derived in the framework of stellar evolution theory and observation. The main effect of large extra dimensions arises from the production of the Kaluza-Klein (KK) excitations of the graviton. The KK-graviton and matter interactions are of gravitational strength, so the KK states never become thermalized and always free...

15-P016 Evolution of HoxA genes towards extra-embryonic functions

Hox genes are well known for their key contribution to the establishment of the body architecture. This function relies on both local and long-range cis-regulatory elements that generate nested expression patterns of the various Hox genes along the anterior–posterior axis of the developing embryo. Interestingly, analyses of expression patterns in different species suggested that modulation of t...

Observational limits on the time evolution of extra spatial dimensions.

Limits are imposed upon the possible rate of change of extra spatial dimensions in Kaluza-Klein and superstring theories by considering the consequences of such changes for primordial nucleosynthesis and the positioning of nuclear resonance levels in samarium, carbon, and oxygen. Previous limits from nucleosynthesis had not included strong-interaction effects. The strongest limits constrain the...

Extra-Pair Mating and Evolution of Cooperative Neighbourhoods

A striking but unexplained pattern in biology is the promiscuous mating behaviour in socially monogamous species. Although females commonly solicit extra-pair copulations, the adaptive reason has remained elusive. We use evolutionary modelling of breeding ecology to show that females benefit because extra-pair paternity incentivizes males to shift focus from a single brood towards the entire ne...