The Abaco Islands. The Abaco Islands consists of several islands and cays (very small islands) that are great for exploring and snorkeling. Andros Island is the Bahamas' largest island but it's also the least developed. Like other Out Islands, Andros Island is ideal for eco-travelers.
bottleneck (bÅt'l-nÄk') An abrupt and severe reduction in the number of individuals during the history of a species, resulting in the loss of diversity from the gene pool. The generations following the bottleneck are more genetically homogenous than would otherwise be expected. Bottlenecks often occur in consequence of a catastrophic event.
bottleneck A narrow passage; an impasse; congestion or constriction; a traffic jam. The reference is to the thin, narrow neck of a bottle, which is necessarily constrictive. By extension, the word is used for any point at which passage or flow becomes impeded because the volume of a larger area must move into a smaller.