Genetic algorithms abstract the fundamental processes of Darwinian evolution: natural selection and genetic variation through recombination and mutation. GAs can also implement non-Darwinian mechanisms such as Lamarckian search, in which local search is used to improve chromosomes, and Bald-winian search, in which local search improves chromosomes' tnesses but the chromosomes themselves are not...

Examination of bald eagles (Haliaeetus leucocephalus) collected from several locations in North America contributed new information concerning the acanthocephalan fauna of this host. Representatives of Arythmorhynchus brevis, representing a new host record, were collected from eagles in Florida, New Hampshire, and Wisconsin. Plagiorhynchus sp. was collected from an eagle in Florida. Corynosoma ...